diff --git a/config/config.exs b/config/config.exs
index d75b2e10a..c584ad18c 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -124,14 +124,6 @@ config :mobilizon, Mobilizon.Web.Email.Mailer,
   # ssl: false,
   # can be `:always` or `:never`
   tls: :never,
-  allowed_tls_versions: [:tlsv1, :"tlsv1.1", :"tlsv1.2"],
-  tls_options: [
-    verify: :verify_peer,
-    versions: [:"tlsv1.2", :"tlsv1.3"],
-    cacerts: :public_key.cacerts_get(),
-    server_name_indication: ~c"localhost",
-    depth: 99
-  ],
   retries: 1,
   # can be `true`
   no_mx_lookups: false
@@ -392,8 +384,7 @@ config :mobilizon, Mobilizon.Service.GlobalSearch.SearchMobilizon,
 
 config :mobilizon, Mobilizon.Service.AntiSpam, service: Mobilizon.Service.AntiSpam.Akismet
 
-config :mobilizon, Mobilizon.Service.SiteMap,
-  path: System.get_env("MOBILIZON_SITEMAP_PATH", "/var/lib/mobilizon/sitemap")
+config :mobilizon, Mobilizon.Service.SiteMap, path: "/var/lib/mobilizon/sitemap"
 
 # Import environment specific config. This must remain at the bottom
 # of this file so it overrides the configuration defined above.
diff --git a/config/docker.exs b/config/docker.exs
index cef88c266..d48dda9e3 100644
--- a/config/docker.exs
+++ b/config/docker.exs
@@ -2,6 +2,28 @@
 
 import Config
 
+{:ok, _} = Application.ensure_all_started(:tls_certificate_check)
+
+loglevels = [
+  :emergency,
+  :alert,
+  :critical,
+  :error,
+  :warning,
+  :notice,
+  :info,
+  :debug
+]
+
+loglevel_env = System.get_env("MOBILIZON_LOGLEVEL", "error")
+
+loglevel =
+  if loglevel_env in Enum.map(loglevels, &to_string/1) do
+    String.to_existing_atom(loglevel_env)
+  else
+    :error
+  end
+
 listen_ip = System.get_env("MOBILIZON_INSTANCE_LISTEN_IP", "0.0.0.0")
 
 listen_ip =
@@ -43,22 +65,18 @@ config :mobilizon, Mobilizon.Storage.Repo,
   ssl: System.get_env("MOBILIZON_DATABASE_SSL", "false") == "true",
   pool_size: 10
 
+config :logger, level: loglevel
+
 config :mobilizon, Mobilizon.Web.Email.Mailer,
   adapter: Swoosh.Adapters.SMTP,
   relay: System.get_env("MOBILIZON_SMTP_SERVER", "localhost"),
   port: System.get_env("MOBILIZON_SMTP_PORT", "25"),
   username: System.get_env("MOBILIZON_SMTP_USERNAME", nil),
   password: System.get_env("MOBILIZON_SMTP_PASSWORD", nil),
-  tls: System.get_env("MOBILIZON_SMTP_TLS", :if_available),
-  allowed_tls_versions: [:"tlsv1.2", :"tlsv1.3"],
-  tls_options: [
-    verify: :verify_peer,
-    versions: [:"tlsv1.2", :"tlsv1.3"],
-    cacerts: :public_key.cacerts_get(),
-    server_name_indication: ~c"#{System.get_env("MOBILIZON_SMTP_SERVER", "localhost")}",
-    depth: 99
-  ],
-  ssl: System.get_env("MOBILIZON_SMTP_SSL", false),
+  tls: System.get_env("MOBILIZON_SMTP_TLS", "if_available"),
+  tls_options:
+    :tls_certificate_check.options(System.get_env("MOBILIZON_SMTP_SERVER", "localhost")),
+  ssl: System.get_env("MOBILIZON_SMTP_SSL", "false"),
   retries: 1,
   no_mx_lookups: false,
   auth: :if_available
@@ -86,4 +104,4 @@ config :mobilizon, :exports,
 config :tz_world,
   data_dir: System.get_env("MOBILIZON_TIMEZONES_DIR", "/var/lib/mobilizon/timezones")
 
-config :tzdata, :data_dir, System.get_env("MOBILIZON_TIMEZONES_DIR", "/var/lib/mobilizon/tzdata")
+config :tzdata, :data_dir, System.get_env("MOBILIZON_TZDATA_DIR", "/var/lib/mobilizon/tzdata")
diff --git a/lib/federation/activity_pub/types/resources.ex b/lib/federation/activity_pub/types/resources.ex
index f38d2c8ac..fd1831e68 100644
--- a/lib/federation/activity_pub/types/resources.ex
+++ b/lib/federation/activity_pub/types/resources.ex
@@ -8,6 +8,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Resources do
   alias Mobilizon.Federation.ActivityStream.Convertible
   alias Mobilizon.Resources.Resource
   alias Mobilizon.Service.Activity.Resource, as: ResourceActivity
+  alias Mobilizon.Service.Formatter.HTML
   alias Mobilizon.Service.RichMedia.Parser
   require Logger
 
@@ -20,21 +21,8 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Resources do
   @spec create(map(), map()) ::
           {:ok, Resource.t(), ActivityStream.t()}
           | {:error, Ecto.Changeset.t() | :creator_not_found | :group_not_found}
-  def create(%{type: type} = args, additional) do
-    args =
-      case type do
-        :folder ->
-          args
-
-        _ ->
-          case Parser.parse(Map.get(args, :resource_url)) do
-            {:ok, metadata} ->
-              Map.put(args, :metadata, metadata)
-
-            _ ->
-              args
-          end
-      end
+  def create(args, additional) do
+    args = prepare_args(args)
 
     with {:ok,
           %Resource{actor_id: group_id, creator_id: creator_id, parent_id: parent_id} = resource} <-
@@ -76,7 +64,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Resources do
         additional
       )
       when old_parent_id != parent_id do
-    move(old_resource, args, additional)
+    move(old_resource, prepare_args(args), additional)
   end
 
   # Simple rename
@@ -218,4 +206,23 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Resources do
   defp parents(old_parent_id, new_parent_id) do
     {:ok, Resources.get_resource(old_parent_id), Resources.get_resource(new_parent_id)}
   end
+
+  defp prepare_args(args) do
+    args =
+      case Map.get(args, :type, :link) do
+        :folder ->
+          args
+
+        _ ->
+          case Parser.parse(Map.get(args, :resource_url)) do
+            {:ok, metadata} ->
+              Map.put(args, :metadata, metadata)
+
+            _ ->
+              args
+          end
+      end
+
+    Map.update(args, :description, nil, &HTML.strip_tags/1)
+  end
 end
diff --git a/lib/federation/activity_pub/utils.ex b/lib/federation/activity_pub/utils.ex
index 51441fc05..38c9a574e 100644
--- a/lib/federation/activity_pub/utils.ex
+++ b/lib/federation/activity_pub/utils.ex
@@ -680,19 +680,22 @@ defmodule Mobilizon.Federation.ActivityPub.Utils do
   @doc """
   Converts PEM encoded keys to a public key representation
   """
-  @spec pem_to_public_key_pem(String.t()) :: String.t()
+  @spec pem_to_public_key_pem(String.t()) :: String.t() | {:error, :no_publickey_found}
   def pem_to_public_key_pem(pem) do
-    public_key = pem_to_public_key(pem)
-    public_key = :public_key.pem_entry_encode(:RSAPublicKey, public_key)
-    :public_key.pem_encode([public_key])
+    case :public_key.pem_decode(pem) do
+      [key_code] ->
+        public_key = pem_to_public_key(key_code)
+        public_key = :public_key.pem_entry_encode(:RSAPublicKey, public_key)
+        :public_key.pem_encode([public_key])
+
+      _ ->
+        {:error, :no_publickey_found}
+    end
   end
 
   @spec pem_to_public_key(String.t()) :: {:RSAPublicKey, any(), any()}
-  defp pem_to_public_key(pem) do
-    [key_code] = :public_key.pem_decode(pem)
-    key = :public_key.pem_entry_decode(key_code)
-
-    case key do
+  defp pem_to_public_key(key_code) do
+    case :public_key.pem_entry_decode(key_code) do
       {:RSAPrivateKey, _, modulus, exponent, _, _, _, _, _, _, _} ->
         {:RSAPublicKey, modulus, exponent}
 
diff --git a/lib/federation/activity_stream/converter/actor.ex b/lib/federation/activity_stream/converter/actor.ex
index db9a4b91a..c44216116 100644
--- a/lib/federation/activity_stream/converter/actor.ex
+++ b/lib/federation/activity_stream/converter/actor.ex
@@ -112,19 +112,11 @@ defmodule Mobilizon.Federation.ActivityStream.Converter.Actor do
       },
       "discoverable" => actor.visibility == :public,
       "openness" => actor.openness,
-      "manuallyApprovesFollowers" => actor.manually_approves_followers,
-      "publicKey" => %{
-        "id" => "#{actor.url}#main-key",
-        "owner" => actor.url,
-        "publicKeyPem" =>
-          if(is_nil(actor.domain) and not is_nil(actor.keys),
-            do: Utils.pem_to_public_key_pem(actor.keys),
-            else: actor.keys
-          )
-      }
+      "manuallyApprovesFollowers" => actor.manually_approves_followers
     }
 
     actor_data
+    |> add_keys(actor)
     |> add_endpoints(actor)
     |> maybe_add_members(actor)
     |> maybe_add_avatar_picture(actor)
@@ -132,6 +124,28 @@ defmodule Mobilizon.Federation.ActivityStream.Converter.Actor do
     |> maybe_add_physical_address(actor)
   end
 
+  @spec add_keys(map(), ActorModel.t()) :: map()
+  defp add_keys(actor_data, %ActorModel{} = actor) do
+    keys =
+      if is_nil(actor.domain) and not is_nil(actor.keys) do
+        case Utils.pem_to_public_key_pem(actor.keys) do
+          {:error, :no_publickey_found} ->
+            raise "No publickey found in private keys"
+
+          public_key when is_binary(public_key) ->
+            public_key
+        end
+      else
+        actor.keys
+      end
+
+    Map.put(actor_data, "publicKey", %{
+      "id" => "#{actor.url}#main-key",
+      "owner" => actor.url,
+      "publicKeyPem" => keys
+    })
+  end
+
   defp add_endpoints(%{"endpoints" => endpoints} = actor_data, %ActorModel{} = actor) do
     new_endpoints = %{
       "members" => actor.members_url,
diff --git a/lib/federation/activity_stream/converter/flag.ex b/lib/federation/activity_stream/converter/flag.ex
index 347ee8d00..1d4944524 100644
--- a/lib/federation/activity_stream/converter/flag.ex
+++ b/lib/federation/activity_stream/converter/flag.ex
@@ -60,6 +60,7 @@ defmodule Mobilizon.Federation.ActivityStream.Converter.Flag do
       "actor" => Relay.get_actor().url,
       "id" => report.url,
       "content" => report.content,
+      "mediaType" => "text/plain",
       "object" => object
     }
   end
diff --git a/lib/graphql/schema/resource.ex b/lib/graphql/schema/resource.ex
index 18ee1e980..22562c1d1 100644
--- a/lib/graphql/schema/resource.ex
+++ b/lib/graphql/schema/resource.ex
@@ -22,7 +22,12 @@ defmodule Mobilizon.GraphQL.Schema.ResourceType do
     field(:inserted_at, :naive_datetime, description: "The resource's creation date")
     field(:updated_at, :naive_datetime, description: "The resource's last update date")
     field(:published_at, :naive_datetime, description: "The resource's publication date")
-    field(:type, :string, description: "The resource's type (if it's a folder)")
+
+    field(:type, :string,
+      default_value: "link",
+      description: "The resource's type (if it's a folder)"
+    )
+
     field(:path, :string, description: "The resource's path")
 
     field(:parent, :resource,
diff --git a/lib/mix/tasks/mobilizon/common.ex b/lib/mix/tasks/mobilizon/common.ex
index 07b8c871b..89f795051 100644
--- a/lib/mix/tasks/mobilizon/common.ex
+++ b/lib/mix/tasks/mobilizon/common.ex
@@ -16,7 +16,7 @@ defmodule Mix.Tasks.Mobilizon.Common do
     if mix_task?(), do: Mix.Task.run("app.config")
 
     unless System.get_env("DEBUG") || @env == :test do
-      Logger.configure(level: :error)
+      Logger.configure(level: loglevel())
     end
 
     Application.put_env(:phoenix, :serve_endpoints, false, persistent: true)
@@ -144,4 +144,25 @@ defmodule Mix.Tasks.Mobilizon.Common do
   defp format_name("Elixir.Mix.Tasks.Mobilizon." <> task_name) do
     String.downcase(task_name)
   end
+
+  @loglevels [
+    :emergency,
+    :alert,
+    :critical,
+    :error,
+    :warning,
+    :notice,
+    :info,
+    :debug
+  ]
+
+  defp loglevel do
+    loglevel_env = System.get_env("MOBILIZON_LOGLEVEL", "error")
+
+    if loglevel_env in Enum.map(@loglevels, &to_string/1) do
+      String.to_existing_atom(loglevel_env)
+    else
+      :error
+    end
+  end
 end
diff --git a/lib/mix/tasks/mobilizon/maintenance/test_emails.ex b/lib/mix/tasks/mobilizon/maintenance/test_emails.ex
new file mode 100644
index 000000000..54e31aa7d
--- /dev/null
+++ b/lib/mix/tasks/mobilizon/maintenance/test_emails.ex
@@ -0,0 +1,65 @@
+defmodule Mix.Tasks.Mobilizon.Maintenance.TestEmails do
+  @moduledoc """
+  Task to send an email to check if the configuration is running properly
+  """
+  use Mix.Task
+  import Mix.Tasks.Mobilizon.Common
+  alias Mobilizon.Config
+  alias Mobilizon.Web.Email
+
+  @shortdoc "Send an email to check if the configuration is running properly"
+
+  @impl Mix.Task
+  def run(options) do
+    {options, args, []} =
+      OptionParser.parse(
+        options,
+        strict: [
+          locale: :string,
+          help: :boolean
+        ],
+        aliases: [
+          l: :locale,
+          h: :help
+        ]
+      )
+
+    if Keyword.get(options, :help, false) do
+      show_help()
+    end
+
+    if Enum.empty?(args) do
+      shell_error("mobilizon.maintenance.test_emails requires an email as argument")
+    end
+
+    start_mobilizon()
+
+    default_language = Config.default_language()
+
+    args
+    |> hd()
+    |> String.trim()
+    |> Email.Admin.email_configuration_test(
+      locale: Keyword.get(options, :locale, default_language)
+    )
+    |> Email.Mailer.send_email()
+  end
+
+  defp show_help do
+    shell_info("""
+    mobilizon.maintenance.test_emails [-h/--help] [email]
+
+    This command allows to send an email to an address in order to verify if email works
+
+    Options:
+
+      -l/--locale
+              Locale for the mail message (en_US, de_DE, …)
+
+      -h/--help
+              Show the help
+    """)
+
+    shutdown(error_code: 0)
+  end
+end
diff --git a/lib/mobilizon/resources/resource.ex b/lib/mobilizon/resources/resource.ex
index e8f19caa2..6b09cb0af 100644
--- a/lib/mobilizon/resources/resource.ex
+++ b/lib/mobilizon/resources/resource.ex
@@ -18,7 +18,7 @@ defmodule Mobilizon.Resources.Resource do
           summary: String.t(),
           url: String.t(),
           resource_url: String.t(),
-          type: atom(),
+          type: TypeEnum.t(),
           metadata: Metadata.t(),
           children: list(__MODULE__),
           parent: __MODULE__,
diff --git a/lib/web/email/admin.ex b/lib/web/email/admin.ex
index 03601164a..7e09acf9a 100644
--- a/lib/web/email/admin.ex
+++ b/lib/web/email/admin.ex
@@ -132,4 +132,24 @@ defmodule Mobilizon.Web.Email.Admin do
       offer_unsupscription: false
     })
   end
+
+  @spec email_configuration_test(String.t(), Keyword.t()) :: Swoosh.Email.t()
+  def email_configuration_test(email, options) do
+    locale = Keyword.get(options, :locale, "en")
+    Gettext.put_locale(locale)
+
+    subject =
+      gettext(
+        "Email configuration test for %{instance}",
+        instance: Config.instance_name()
+      )
+
+    [to: email, subject: subject]
+    |> Email.base_email()
+    |> render_body(:email_configuration_test, %{
+      locale: locale,
+      subject: subject,
+      offer_unsupscription: false
+    })
+  end
 end
diff --git a/lib/web/templates/email/email_configuration_test.html.heex b/lib/web/templates/email/email_configuration_test.html.heex
new file mode 100644
index 000000000..8c20806cb
--- /dev/null
+++ b/lib/web/templates/email/email_configuration_test.html.heex
@@ -0,0 +1,60 @@
+<!-- HERO -->
+<tr>
+  <td bgcolor="#474467" align="center" style="padding: 0px 10px 0px 10px;">
+    <!--[if (gte mso 9)|(IE)]>
+      <table align="center" border="0" cellspacing="0" cellpadding="0" width="600">
+        <tr>
+          <td align="center" valign="top" width="600">
+    <![endif]-->
+    <table border="0" cellpadding="0" cellspacing="0" width="100%" style="max-width: 600px;">
+      <tr>
+        <td
+          bgcolor="#ffffff"
+          align="center"
+          valign="top"
+          style="padding: 40px 20px 20px 20px; border-radius: 4px 4px 0px 0px; color: #3A384C; font-family: 'Roboto', Helvetica, Arial, sans-serif; font-size: 48px; font-weight: 400; line-height: 48px;"
+        >
+          <h1 style="font-size: 48px; font-weight: 400; margin: 0;">
+            <%= gettext("Well done!") %>
+          </h1>
+        </td>
+      </tr>
+    </table>
+    <!--[if (gte mso 9)|(IE)]>
+    </td>
+  </tr>
+</table>
+    <![endif]-->
+  </td>
+</tr>
+<!-- COPY BLOCK -->
+<tr>
+  <td bgcolor="#E6E4F4" align="center" style="padding: 0px 10px 0px 10px;">
+    <!--[if (gte mso 9)|(IE)]>
+      <table align="center" border="0" cellspacing="0" cellpadding="0" width="600">
+        <tr>
+          <td align="center" valign="top" width="600">
+    <![endif]-->
+    <table border="0" cellpadding="0" cellspacing="0" width="100%" style="max-width: 600px;">
+      <!-- COPY -->
+      <tr>
+        <td
+          bgcolor="#ffffff"
+          align="left"
+          style="padding: 20px 30px 30px 30px; color: #474467; font-family: 'Roboto', Helvetica, Arial, sans-serif; font-size: 18px; font-weight: 400; line-height: 25px;"
+        >
+          <p style="margin: 0;">
+            <%= gettext(
+              "If you received this email, the email configuration seems to be correct."
+            ) %>
+          </p>
+        </td>
+      </tr>
+    </table>
+    <!--[if (gte mso 9)|(IE)]>
+    </td>
+  </tr>
+</table>
+    <![endif]-->
+  </td>
+</tr>
diff --git a/lib/web/templates/email/email_configuration_test.text.eex b/lib/web/templates/email/email_configuration_test.text.eex
new file mode 100644
index 000000000..0ad20c79c
--- /dev/null
+++ b/lib/web/templates/email/email_configuration_test.text.eex
@@ -0,0 +1,3 @@
+<%= gettext "Well done!" %>
+==
+<%= gettext "If you received this email, the email configuration seems to be correct." %>
diff --git a/lib/web/templates/email/report.html.heex b/lib/web/templates/email/report.html.heex
index 0a8ad5bbe..002e81ac5 100644
--- a/lib/web/templates/email/report.html.heex
+++ b/lib/web/templates/email/report.html.heex
@@ -192,7 +192,7 @@
           >
             <p style="margin: 0">
               <h3><%= gettext("Reasons for report") %></h3>
-              <%= @report.content |> raw %>
+              <%= @report.content %>
             </p>
             <table
               cellspacing="0"
diff --git a/mix.exs b/mix.exs
index 63bf66fd6..53f2a77d6 100644
--- a/mix.exs
+++ b/mix.exs
@@ -89,7 +89,7 @@ defmodule Mobilizon.Mixfile do
   end
 
   defp extra_applications(_env) do
-    [:logger, :runtime_tools, :guardian, :geolix, :crypto, :cachex]
+    [:tls_certificate_check, :logger, :runtime_tools, :guardian, :geolix, :crypto, :cachex]
   end
 
   def copy_files(%{path: target_path} = release) do
@@ -220,6 +220,7 @@ defmodule Mobilizon.Mixfile do
       {:exkismet, github: "tcitworld/exkismet"},
       {:rajska, github: "tcitworld/rajska", branch: "mobilizon"},
       {:hammer, "~> 6.1"},
+      {:tls_certificate_check, "~> 1.20"},
       # Dev and test dependencies
       {:phoenix_live_reload, "~> 1.2", only: [:dev, :e2e]},
       {:ex_machina, "~> 2.3", only: [:dev, :test]},
diff --git a/mix.lock b/mix.lock
index 14967a383..0b6d85be8 100644
--- a/mix.lock
+++ b/mix.lock
@@ -139,6 +139,7 @@
   "telemetry": {:hex, :telemetry, "1.2.1", "68fdfe8d8f05a8428483a97d7aab2f268aaff24b49e0f599faa091f1d4e7f61c", [:rebar3], [], "hexpm", "dad9ce9d8effc621708f99eac538ef1cbe05d6a874dd741de2e689c47feafed5"},
   "tesla": {:hex, :tesla, "1.8.0", "d511a4f5c5e42538d97eef7c40ec4f3e44effdc5068206f42ed859e09e51d1fd", [:mix], [{:castore, "~> 0.1 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}, {:exjsx, ">= 3.0.0", [hex: :exjsx, repo: "hexpm", optional: true]}, {:finch, "~> 0.13", [hex: :finch, repo: "hexpm", optional: true]}, {:fuse, "~> 2.4", [hex: :fuse, repo: "hexpm", optional: true]}, {:gun, ">= 1.0.0", [hex: :gun, repo: "hexpm", optional: true]}, {:hackney, "~> 1.6", [hex: :hackney, repo: "hexpm", optional: true]}, {:ibrowse, "4.4.2", [hex: :ibrowse, repo: "hexpm", optional: true]}, {:jason, ">= 1.0.0", [hex: :jason, repo: "hexpm", optional: true]}, {:mime, "~> 1.0 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:mint, "~> 1.0", [hex: :mint, repo: "hexpm", optional: true]}, {:msgpax, "~> 2.3", [hex: :msgpax, repo: "hexpm", optional: true]}, {:poison, ">= 1.0.0", [hex: :poison, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: true]}], "hexpm", "10501f360cd926a309501287470372af1a6e1cbed0f43949203a4c13300bc79f"},
   "timex": {:hex, :timex, "3.7.11", "bb95cb4eb1d06e27346325de506bcc6c30f9c6dea40d1ebe390b262fad1862d1", [:mix], [{:combine, "~> 0.10", [hex: :combine, repo: "hexpm", optional: false]}, {:gettext, "~> 0.20", [hex: :gettext, repo: "hexpm", optional: false]}, {:tzdata, "~> 1.1", [hex: :tzdata, repo: "hexpm", optional: false]}], "hexpm", "8b9024f7efbabaf9bd7aa04f65cf8dcd7c9818ca5737677c7b76acbc6a94d1aa"},
+  "tls_certificate_check": {:hex, :tls_certificate_check, "1.20.0", "1ac0c53f95e201feb8d398ef9d764ae74175231289d89f166ba88a7f50cd8e73", [:rebar3], [{:ssl_verify_fun, "~> 1.1", [hex: :ssl_verify_fun, repo: "hexpm", optional: false]}], "hexpm", "ab57b74b1a63dc5775650699a3ec032ec0065005eff1f020818742b7312a8426"},
   "tz_world": {:hex, :tz_world, "1.3.1", "dedb8373fce594098909ff36d37f5e5e30e47cb40ef846d1dfc91eb39f7ebaaf", [:mix], [{:castore, "~> 0.1 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}, {:certifi, "~> 2.5", [hex: :certifi, repo: "hexpm", optional: true]}, {:geo, "~> 1.0 or ~> 2.0 or ~> 3.3", [hex: :geo, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "901ed2b4a4430ecab3765244da4a19e6f19141867c2ab3753924919b87ed2224"},
   "tzdata": {:hex, :tzdata, "1.1.1", "20c8043476dfda8504952d00adac41c6eda23912278add38edc140ae0c5bcc46", [:mix], [{:hackney, "~> 1.17", [hex: :hackney, repo: "hexpm", optional: false]}], "hexpm", "a69cec8352eafcd2e198dea28a34113b60fdc6cb57eb5ad65c10292a6ba89787"},
   "ueberauth": {:hex, :ueberauth, "0.10.5", "806adb703df87e55b5615cf365e809f84c20c68aa8c08ff8a416a5a6644c4b02", [:mix], [{:plug, "~> 1.5", [hex: :plug, repo: "hexpm", optional: false]}], "hexpm", "3efd1f31d490a125c7ed453b926f7c31d78b97b8a854c755f5c40064bf3ac9e1"},
diff --git a/priv/gettext/ar/LC_MESSAGES/default.po b/priv/gettext/ar/LC_MESSAGES/default.po
index f559fc99a..0656231a0 100644
--- a/priv/gettext/ar/LC_MESSAGES/default.po
+++ b/priv/gettext/ar/LC_MESSAGES/default.po
@@ -103,7 +103,7 @@ msgstr ""
 msgid "You created an account on %{host} with this email address. You are one click away from activating it. If this wasn't you, please ignore this email."
 msgstr ""
 
-#: lib/web/email/participation.ex:114
+#: lib/web/email/participation.ex:115
 #, elixir-autogen, elixir-format
 msgid "Your participation to event %{title} has been approved"
 msgstr ""
@@ -133,7 +133,7 @@ msgstr ""
 msgid "Warning"
 msgstr "تنبيه"
 
-#: lib/web/email/participation.ex:140
+#: lib/web/email/participation.ex:142
 #, elixir-autogen, elixir-format
 msgid "Confirm your participation to event %{title}"
 msgstr ""
@@ -997,7 +997,7 @@ msgstr ""
 
 #: lib/web/templates/email/event_participation_approved.html.heex:98
 #: lib/web/templates/email/event_participation_approved.text.eex:11
-#: lib/web/templates/email/event_participation_confirmed.html.heex:98
+#: lib/web/templates/email/event_participation_confirmed.html.heex:140
 #: lib/web/templates/email/event_participation_confirmed.text.eex:6
 #, elixir-autogen, elixir-format
 msgid "Would you wish to update or cancel your attendance, simply access the event page through the link above and click on the Attending button."
@@ -1311,7 +1311,7 @@ msgid "This is a demonstration site to test Mobilizon."
 msgstr ""
 
 #: lib/service/metadata/actor.ex:86
-#: lib/service/metadata/actor.ex:92
+#: lib/service/metadata/actor.ex:93
 #: lib/service/metadata/instance.ex:60
 #: lib/service/metadata/instance.ex:66
 #, elixir-autogen, elixir-format
@@ -2021,11 +2021,30 @@ msgid "Participant registration date"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:113
+#: lib/web/templates/email/event_participation_confirmed.html.heex:122
 #, elixir-autogen, elixir-format
 msgid "Cancel my attendance"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:90
+#: lib/web/templates/email/event_participation_confirmed.html.heex:99
 #, elixir-autogen, elixir-format
 msgid "If you wish to cancel your participation, simply click on the link below."
 msgstr ""
+
+#: lib/web/email/admin.ex:142
+#, elixir-autogen, elixir-format
+msgid "Email configuration test for %{instance}"
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:47
+#: lib/web/templates/email/email_configuration_test.text.eex:3
+#, elixir-autogen, elixir-format
+msgid "If you received this email, the email configuration seems to be correct."
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:18
+#: lib/web/templates/email/email_configuration_test.text.eex:1
+#, elixir-autogen, elixir-format
+msgid "Well done!"
+msgstr ""
diff --git a/priv/gettext/ar/LC_MESSAGES/errors.po b/priv/gettext/ar/LC_MESSAGES/errors.po
index e0a0e6c74..e4efbe032 100644
--- a/priv/gettext/ar/LC_MESSAGES/errors.po
+++ b/priv/gettext/ar/LC_MESSAGES/errors.po
@@ -1197,23 +1197,23 @@ msgstr ""
 msgid "Impossible to create application."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:355
+#: lib/web/controllers/application_controller.ex:353
 #, elixir-autogen, elixir-format
 msgid "Incorrect parameters sent. You need to provide at least the grant_type and client_id parameters, depending on the grant type being used."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:328
+#: lib/web/controllers/application_controller.ex:326
 #, elixir-autogen, elixir-format
 msgid "Invalid client credentials provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:336
+#: lib/web/controllers/application_controller.ex:334
 #, elixir-autogen, elixir-format
 msgid "Invalid refresh token provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:169
-#: lib/web/controllers/application_controller.ex:400
+#: lib/web/controllers/application_controller.ex:167
+#: lib/web/controllers/application_controller.ex:398
 #, elixir-autogen, elixir-format
 msgid "No application was found with this client_id"
 msgstr ""
@@ -1239,17 +1239,17 @@ msgstr ""
 msgid "Not authorized to access this %{object_type}"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:278
+#: lib/web/controllers/application_controller.ex:276
 #, elixir-autogen, elixir-format
 msgid "Please slow down the rate of your requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:266
+#: lib/web/controllers/application_controller.ex:264
 #, elixir-autogen, elixir-format
 msgid "The authorization request is still pending"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:248
+#: lib/web/controllers/application_controller.ex:246
 #, elixir-autogen, elixir-format
 msgid "The client_id provided or the device_code associated is invalid"
 msgstr ""
@@ -1259,7 +1259,7 @@ msgstr ""
 msgid "The device user code was not provided before approving the application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:303
+#: lib/web/controllers/application_controller.ex:301
 #, elixir-autogen, elixir-format
 msgid "The given device_code has expired"
 msgstr ""
@@ -1269,7 +1269,7 @@ msgstr ""
 msgid "The given redirect_uri is not in the list of allowed redirect URIs"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:157
+#: lib/web/controllers/application_controller.ex:155
 #, elixir-autogen, elixir-format
 msgid "The given scope is not in the list of the app declared scopes"
 msgstr ""
@@ -1286,22 +1286,22 @@ msgstr ""
 msgid "The given user code is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:410
+#: lib/web/controllers/application_controller.ex:408
 #, elixir-autogen, elixir-format
 msgid "The provided client_id does not match the provided code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:413
+#: lib/web/controllers/application_controller.ex:411
 #, elixir-autogen, elixir-format
 msgid "The provided client_secret is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:406
+#: lib/web/controllers/application_controller.ex:404
 #, elixir-autogen, elixir-format
 msgid "The provided code is invalid or expired"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:417
+#: lib/web/controllers/application_controller.ex:415
 #, elixir-autogen, elixir-format
 msgid "The provided scope is invalid or not included in the app declared scopes"
 msgstr ""
@@ -1311,17 +1311,17 @@ msgstr ""
 msgid "The scope parameter is not a space separated list of valid scopes"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:291
+#: lib/web/controllers/application_controller.ex:289
 #, elixir-autogen, elixir-format
 msgid "The user rejected the requested authorization"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:403
+#: lib/web/controllers/application_controller.ex:401
 #, elixir-autogen, elixir-format
 msgid "This redirect URI is not allowed"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:380
+#: lib/web/controllers/application_controller.ex:378
 #, elixir-autogen, elixir-format, fuzzy
 msgid "Token not found"
 msgstr ""
@@ -1331,27 +1331,27 @@ msgstr ""
 msgid "Too many requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:183
+#: lib/web/controllers/application_controller.ex:181
 #, elixir-autogen, elixir-format
 msgid "Unable to produce device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:372
+#: lib/web/controllers/application_controller.ex:370
 #, elixir-autogen, elixir-format
 msgid "Unable to revoke token"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:197
+#: lib/web/controllers/application_controller.ex:195
 #, elixir-autogen, elixir-format
 msgid "You need to pass both client_id and scope as parameters to obtain a device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:135
+#: lib/web/controllers/application_controller.ex:133
 #, elixir-autogen, elixir-format
 msgid "You need to provide a valid redirect_uri to autorize an application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:125
+#: lib/web/controllers/application_controller.ex:123
 #, elixir-autogen, elixir-format
 msgid "You need to specify client_id, redirect_uri, scope and state to autorize an application"
 msgstr ""
@@ -1387,7 +1387,7 @@ msgstr ""
 msgid "This instance is pending follow approval"
 msgstr ""
 
-#: lib/graphql/schema/custom/timezone.ex:23
+#: lib/graphql/schema/custom/timezone.ex:25
 #, elixir-autogen, elixir-format
 msgid "Timezone ID %{timezone} is invalid"
 msgstr ""
diff --git a/priv/gettext/be/LC_MESSAGES/default.po b/priv/gettext/be/LC_MESSAGES/default.po
index aa6ebf2d0..c7b3902e0 100644
--- a/priv/gettext/be/LC_MESSAGES/default.po
+++ b/priv/gettext/be/LC_MESSAGES/default.po
@@ -101,7 +101,7 @@ msgstr ""
 msgid "You created an account on %{host} with this email address. You are one click away from activating it. If this wasn't you, please ignore this email."
 msgstr ""
 
-#: lib/web/email/participation.ex:114
+#: lib/web/email/participation.ex:115
 #, elixir-autogen, elixir-format
 msgid "Your participation to event %{title} has been approved"
 msgstr ""
@@ -131,7 +131,7 @@ msgstr ""
 msgid "Warning"
 msgstr ""
 
-#: lib/web/email/participation.ex:140
+#: lib/web/email/participation.ex:142
 #, elixir-autogen, elixir-format
 msgid "Confirm your participation to event %{title}"
 msgstr ""
@@ -977,7 +977,7 @@ msgstr ""
 
 #: lib/web/templates/email/event_participation_approved.html.heex:98
 #: lib/web/templates/email/event_participation_approved.text.eex:11
-#: lib/web/templates/email/event_participation_confirmed.html.heex:98
+#: lib/web/templates/email/event_participation_confirmed.html.heex:140
 #: lib/web/templates/email/event_participation_confirmed.text.eex:6
 #, elixir-autogen, elixir-format
 msgid "Would you wish to update or cancel your attendance, simply access the event page through the link above and click on the Attending button."
@@ -1291,7 +1291,7 @@ msgid "This is a demonstration site to test Mobilizon."
 msgstr ""
 
 #: lib/service/metadata/actor.ex:86
-#: lib/service/metadata/actor.ex:92
+#: lib/service/metadata/actor.ex:93
 #: lib/service/metadata/instance.ex:60
 #: lib/service/metadata/instance.ex:66
 #, elixir-autogen, elixir-format
@@ -1998,11 +1998,30 @@ msgid "Participant registration date"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:113
+#: lib/web/templates/email/event_participation_confirmed.html.heex:122
 #, elixir-autogen, elixir-format
 msgid "Cancel my attendance"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:90
+#: lib/web/templates/email/event_participation_confirmed.html.heex:99
 #, elixir-autogen, elixir-format
 msgid "If you wish to cancel your participation, simply click on the link below."
 msgstr ""
+
+#: lib/web/email/admin.ex:142
+#, elixir-autogen, elixir-format
+msgid "Email configuration test for %{instance}"
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:47
+#: lib/web/templates/email/email_configuration_test.text.eex:3
+#, elixir-autogen, elixir-format
+msgid "If you received this email, the email configuration seems to be correct."
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:18
+#: lib/web/templates/email/email_configuration_test.text.eex:1
+#, elixir-autogen, elixir-format
+msgid "Well done!"
+msgstr ""
diff --git a/priv/gettext/be/LC_MESSAGES/errors.po b/priv/gettext/be/LC_MESSAGES/errors.po
index 2496d8cd9..dfd7e8329 100644
--- a/priv/gettext/be/LC_MESSAGES/errors.po
+++ b/priv/gettext/be/LC_MESSAGES/errors.po
@@ -1171,23 +1171,23 @@ msgstr ""
 msgid "Impossible to create application."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:355
+#: lib/web/controllers/application_controller.ex:353
 #, elixir-autogen, elixir-format
 msgid "Incorrect parameters sent. You need to provide at least the grant_type and client_id parameters, depending on the grant type being used."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:328
+#: lib/web/controllers/application_controller.ex:326
 #, elixir-autogen, elixir-format
 msgid "Invalid client credentials provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:336
+#: lib/web/controllers/application_controller.ex:334
 #, elixir-autogen, elixir-format
 msgid "Invalid refresh token provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:169
-#: lib/web/controllers/application_controller.ex:400
+#: lib/web/controllers/application_controller.ex:167
+#: lib/web/controllers/application_controller.ex:398
 #, elixir-autogen, elixir-format
 msgid "No application was found with this client_id"
 msgstr ""
@@ -1213,17 +1213,17 @@ msgstr ""
 msgid "Not authorized to access this %{object_type}"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:278
+#: lib/web/controllers/application_controller.ex:276
 #, elixir-autogen, elixir-format
 msgid "Please slow down the rate of your requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:266
+#: lib/web/controllers/application_controller.ex:264
 #, elixir-autogen, elixir-format
 msgid "The authorization request is still pending"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:248
+#: lib/web/controllers/application_controller.ex:246
 #, elixir-autogen, elixir-format
 msgid "The client_id provided or the device_code associated is invalid"
 msgstr ""
@@ -1233,7 +1233,7 @@ msgstr ""
 msgid "The device user code was not provided before approving the application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:303
+#: lib/web/controllers/application_controller.ex:301
 #, elixir-autogen, elixir-format
 msgid "The given device_code has expired"
 msgstr ""
@@ -1243,7 +1243,7 @@ msgstr ""
 msgid "The given redirect_uri is not in the list of allowed redirect URIs"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:157
+#: lib/web/controllers/application_controller.ex:155
 #, elixir-autogen, elixir-format
 msgid "The given scope is not in the list of the app declared scopes"
 msgstr ""
@@ -1260,22 +1260,22 @@ msgstr ""
 msgid "The given user code is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:410
+#: lib/web/controllers/application_controller.ex:408
 #, elixir-autogen, elixir-format
 msgid "The provided client_id does not match the provided code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:413
+#: lib/web/controllers/application_controller.ex:411
 #, elixir-autogen, elixir-format
 msgid "The provided client_secret is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:406
+#: lib/web/controllers/application_controller.ex:404
 #, elixir-autogen, elixir-format
 msgid "The provided code is invalid or expired"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:417
+#: lib/web/controllers/application_controller.ex:415
 #, elixir-autogen, elixir-format
 msgid "The provided scope is invalid or not included in the app declared scopes"
 msgstr ""
@@ -1285,17 +1285,17 @@ msgstr ""
 msgid "The scope parameter is not a space separated list of valid scopes"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:291
+#: lib/web/controllers/application_controller.ex:289
 #, elixir-autogen, elixir-format
 msgid "The user rejected the requested authorization"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:403
+#: lib/web/controllers/application_controller.ex:401
 #, elixir-autogen, elixir-format
 msgid "This redirect URI is not allowed"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:380
+#: lib/web/controllers/application_controller.ex:378
 #, elixir-autogen, elixir-format, fuzzy
 msgid "Token not found"
 msgstr ""
@@ -1305,27 +1305,27 @@ msgstr ""
 msgid "Too many requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:183
+#: lib/web/controllers/application_controller.ex:181
 #, elixir-autogen, elixir-format
 msgid "Unable to produce device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:372
+#: lib/web/controllers/application_controller.ex:370
 #, elixir-autogen, elixir-format
 msgid "Unable to revoke token"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:197
+#: lib/web/controllers/application_controller.ex:195
 #, elixir-autogen, elixir-format
 msgid "You need to pass both client_id and scope as parameters to obtain a device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:135
+#: lib/web/controllers/application_controller.ex:133
 #, elixir-autogen, elixir-format
 msgid "You need to provide a valid redirect_uri to autorize an application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:125
+#: lib/web/controllers/application_controller.ex:123
 #, elixir-autogen, elixir-format
 msgid "You need to specify client_id, redirect_uri, scope and state to autorize an application"
 msgstr ""
@@ -1361,7 +1361,7 @@ msgstr ""
 msgid "This instance is pending follow approval"
 msgstr ""
 
-#: lib/graphql/schema/custom/timezone.ex:23
+#: lib/graphql/schema/custom/timezone.ex:25
 #, elixir-autogen, elixir-format
 msgid "Timezone ID %{timezone} is invalid"
 msgstr ""
diff --git a/priv/gettext/ca/LC_MESSAGES/default.po b/priv/gettext/ca/LC_MESSAGES/default.po
index 2817a279f..83921993b 100644
--- a/priv/gettext/ca/LC_MESSAGES/default.po
+++ b/priv/gettext/ca/LC_MESSAGES/default.po
@@ -110,7 +110,7 @@ msgstr ""
 "Has creat un compte a %{host} amb aquesta adreça de mail. Estàs a un clic d"
 "'activar-lo. Si no l'has creat tu, ignora aquest mail."
 
-#: lib/web/email/participation.ex:114
+#: lib/web/email/participation.ex:115
 #, elixir-autogen, elixir-format
 msgid "Your participation to event %{title} has been approved"
 msgstr "T'han aprovat la participació a %{title}"
@@ -140,7 +140,7 @@ msgstr "Algú ha soŀlicitat a %{instance} una contrasenya nova."
 msgid "Warning"
 msgstr "Alerta"
 
-#: lib/web/email/participation.ex:140
+#: lib/web/email/participation.ex:142
 #, elixir-autogen, elixir-format
 msgid "Confirm your participation to event %{title}"
 msgstr "Confirma que participaràs a l'activitat %{title}"
@@ -1165,7 +1165,7 @@ msgstr "Què fan avui?"
 
 #: lib/web/templates/email/event_participation_approved.html.heex:98
 #: lib/web/templates/email/event_participation_approved.text.eex:11
-#: lib/web/templates/email/event_participation_confirmed.html.heex:98
+#: lib/web/templates/email/event_participation_confirmed.html.heex:140
 #: lib/web/templates/email/event_participation_confirmed.text.eex:6
 #, elixir-autogen, elixir-format
 msgid "Would you wish to update or cancel your attendance, simply access the event page through the link above and click on the Attending button."
@@ -1533,7 +1533,7 @@ msgid "This is a demonstration site to test Mobilizon."
 msgstr "Aquesta és una web de proves per provar la beta de Mobilizon."
 
 #: lib/service/metadata/actor.ex:86
-#: lib/service/metadata/actor.ex:92
+#: lib/service/metadata/actor.ex:93
 #: lib/service/metadata/instance.ex:60
 #: lib/service/metadata/instance.ex:66
 #, elixir-autogen, elixir-format
@@ -2256,11 +2256,30 @@ msgid "Participant registration date"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:113
+#: lib/web/templates/email/event_participation_confirmed.html.heex:122
 #, elixir-autogen, elixir-format
 msgid "Cancel my attendance"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:90
+#: lib/web/templates/email/event_participation_confirmed.html.heex:99
 #, elixir-autogen, elixir-format
 msgid "If you wish to cancel your participation, simply click on the link below."
 msgstr ""
+
+#: lib/web/email/admin.ex:142
+#, elixir-autogen, elixir-format
+msgid "Email configuration test for %{instance}"
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:47
+#: lib/web/templates/email/email_configuration_test.text.eex:3
+#, elixir-autogen, elixir-format
+msgid "If you received this email, the email configuration seems to be correct."
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:18
+#: lib/web/templates/email/email_configuration_test.text.eex:1
+#, elixir-autogen, elixir-format
+msgid "Well done!"
+msgstr ""
diff --git a/priv/gettext/ca/LC_MESSAGES/errors.po b/priv/gettext/ca/LC_MESSAGES/errors.po
index 7a3c776e3..1bba8fcc0 100644
--- a/priv/gettext/ca/LC_MESSAGES/errors.po
+++ b/priv/gettext/ca/LC_MESSAGES/errors.po
@@ -1172,23 +1172,23 @@ msgstr ""
 msgid "Impossible to create application."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:355
+#: lib/web/controllers/application_controller.ex:353
 #, elixir-autogen, elixir-format
 msgid "Incorrect parameters sent. You need to provide at least the grant_type and client_id parameters, depending on the grant type being used."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:328
+#: lib/web/controllers/application_controller.ex:326
 #, elixir-autogen, elixir-format
 msgid "Invalid client credentials provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:336
+#: lib/web/controllers/application_controller.ex:334
 #, elixir-autogen, elixir-format
 msgid "Invalid refresh token provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:169
-#: lib/web/controllers/application_controller.ex:400
+#: lib/web/controllers/application_controller.ex:167
+#: lib/web/controllers/application_controller.ex:398
 #, elixir-autogen, elixir-format
 msgid "No application was found with this client_id"
 msgstr ""
@@ -1214,17 +1214,17 @@ msgstr ""
 msgid "Not authorized to access this %{object_type}"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:278
+#: lib/web/controllers/application_controller.ex:276
 #, elixir-autogen, elixir-format
 msgid "Please slow down the rate of your requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:266
+#: lib/web/controllers/application_controller.ex:264
 #, elixir-autogen, elixir-format
 msgid "The authorization request is still pending"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:248
+#: lib/web/controllers/application_controller.ex:246
 #, elixir-autogen, elixir-format
 msgid "The client_id provided or the device_code associated is invalid"
 msgstr ""
@@ -1234,7 +1234,7 @@ msgstr ""
 msgid "The device user code was not provided before approving the application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:303
+#: lib/web/controllers/application_controller.ex:301
 #, elixir-autogen, elixir-format
 msgid "The given device_code has expired"
 msgstr ""
@@ -1244,7 +1244,7 @@ msgstr ""
 msgid "The given redirect_uri is not in the list of allowed redirect URIs"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:157
+#: lib/web/controllers/application_controller.ex:155
 #, elixir-autogen, elixir-format
 msgid "The given scope is not in the list of the app declared scopes"
 msgstr ""
@@ -1261,22 +1261,22 @@ msgstr ""
 msgid "The given user code is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:410
+#: lib/web/controllers/application_controller.ex:408
 #, elixir-autogen, elixir-format
 msgid "The provided client_id does not match the provided code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:413
+#: lib/web/controllers/application_controller.ex:411
 #, elixir-autogen, elixir-format
 msgid "The provided client_secret is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:406
+#: lib/web/controllers/application_controller.ex:404
 #, elixir-autogen, elixir-format
 msgid "The provided code is invalid or expired"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:417
+#: lib/web/controllers/application_controller.ex:415
 #, elixir-autogen, elixir-format
 msgid "The provided scope is invalid or not included in the app declared scopes"
 msgstr ""
@@ -1286,17 +1286,17 @@ msgstr ""
 msgid "The scope parameter is not a space separated list of valid scopes"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:291
+#: lib/web/controllers/application_controller.ex:289
 #, elixir-autogen, elixir-format
 msgid "The user rejected the requested authorization"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:403
+#: lib/web/controllers/application_controller.ex:401
 #, elixir-autogen, elixir-format
 msgid "This redirect URI is not allowed"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:380
+#: lib/web/controllers/application_controller.ex:378
 #, elixir-autogen, elixir-format, fuzzy
 msgid "Token not found"
 msgstr ""
@@ -1306,27 +1306,27 @@ msgstr ""
 msgid "Too many requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:183
+#: lib/web/controllers/application_controller.ex:181
 #, elixir-autogen, elixir-format
 msgid "Unable to produce device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:372
+#: lib/web/controllers/application_controller.ex:370
 #, elixir-autogen, elixir-format
 msgid "Unable to revoke token"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:197
+#: lib/web/controllers/application_controller.ex:195
 #, elixir-autogen, elixir-format
 msgid "You need to pass both client_id and scope as parameters to obtain a device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:135
+#: lib/web/controllers/application_controller.ex:133
 #, elixir-autogen, elixir-format
 msgid "You need to provide a valid redirect_uri to autorize an application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:125
+#: lib/web/controllers/application_controller.ex:123
 #, elixir-autogen, elixir-format
 msgid "You need to specify client_id, redirect_uri, scope and state to autorize an application"
 msgstr ""
@@ -1362,7 +1362,7 @@ msgstr ""
 msgid "This instance is pending follow approval"
 msgstr ""
 
-#: lib/graphql/schema/custom/timezone.ex:23
+#: lib/graphql/schema/custom/timezone.ex:25
 #, elixir-autogen, elixir-format
 msgid "Timezone ID %{timezone} is invalid"
 msgstr ""
diff --git a/priv/gettext/cs/LC_MESSAGES/default.po b/priv/gettext/cs/LC_MESSAGES/default.po
index 3b47f3a09..c7430749a 100644
--- a/priv/gettext/cs/LC_MESSAGES/default.po
+++ b/priv/gettext/cs/LC_MESSAGES/default.po
@@ -111,7 +111,7 @@ msgstr ""
 "aktivace vás dělí jediné kliknutí. Pokud jste to nebyli vy, ignorujte prosím "
 "tento e-mail."
 
-#: lib/web/email/participation.ex:114
+#: lib/web/email/participation.ex:115
 #, elixir-autogen, elixir-format
 msgid "Your participation to event %{title} has been approved"
 msgstr "Vaše účast na události %{title} byla schválena"
@@ -141,7 +141,7 @@ msgstr "Vyžádali jste si nové heslo pro svůj účet na %{instance}."
 msgid "Warning"
 msgstr "Upozornění"
 
-#: lib/web/email/participation.ex:140
+#: lib/web/email/participation.ex:142
 #, elixir-autogen, elixir-format
 msgid "Confirm your participation to event %{title}"
 msgstr "Potvrďte svou účast na události %{title}"
@@ -1180,7 +1180,7 @@ msgstr "Co se dnes děje?"
 
 #: lib/web/templates/email/event_participation_approved.html.heex:98
 #: lib/web/templates/email/event_participation_approved.text.eex:11
-#: lib/web/templates/email/event_participation_confirmed.html.heex:98
+#: lib/web/templates/email/event_participation_confirmed.html.heex:140
 #: lib/web/templates/email/event_participation_confirmed.text.eex:6
 #, elixir-autogen, elixir-format
 msgid "Would you wish to update or cancel your attendance, simply access the event page through the link above and click on the Attending button."
@@ -1596,7 +1596,7 @@ msgid "This is a demonstration site to test Mobilizon."
 msgstr "Jde o demonstrační web pro testování Mobilizon."
 
 #: lib/service/metadata/actor.ex:86
-#: lib/service/metadata/actor.ex:92
+#: lib/service/metadata/actor.ex:93
 #: lib/service/metadata/instance.ex:60
 #: lib/service/metadata/instance.ex:66
 #, elixir-autogen, elixir-format
@@ -2349,11 +2349,30 @@ msgid "Participant registration date"
 msgstr "Status účastníka"
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:113
+#: lib/web/templates/email/event_participation_confirmed.html.heex:122
 #, elixir-autogen, elixir-format
 msgid "Cancel my attendance"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:90
+#: lib/web/templates/email/event_participation_confirmed.html.heex:99
 #, elixir-autogen, elixir-format
 msgid "If you wish to cancel your participation, simply click on the link below."
 msgstr ""
+
+#: lib/web/email/admin.ex:142
+#, elixir-autogen, elixir-format
+msgid "Email configuration test for %{instance}"
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:47
+#: lib/web/templates/email/email_configuration_test.text.eex:3
+#, elixir-autogen, elixir-format
+msgid "If you received this email, the email configuration seems to be correct."
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:18
+#: lib/web/templates/email/email_configuration_test.text.eex:1
+#, elixir-autogen, elixir-format
+msgid "Well done!"
+msgstr ""
diff --git a/priv/gettext/cs/LC_MESSAGES/errors.po b/priv/gettext/cs/LC_MESSAGES/errors.po
index 773e9a98d..155943dfc 100644
--- a/priv/gettext/cs/LC_MESSAGES/errors.po
+++ b/priv/gettext/cs/LC_MESSAGES/errors.po
@@ -1199,25 +1199,25 @@ msgstr "Chyba při odebírání tokenu"
 msgid "Impossible to create application."
 msgstr "Nelze vytvořit aplikaci."
 
-#: lib/web/controllers/application_controller.ex:355
+#: lib/web/controllers/application_controller.ex:353
 #, elixir-autogen, elixir-format
 msgid "Incorrect parameters sent. You need to provide at least the grant_type and client_id parameters, depending on the grant type being used."
 msgstr ""
 "Odeslány nesprávné parametry. V závislosti na použitém typu grantu je třeba "
 "zadat alespoň parametry grant_type a client_id."
 
-#: lib/web/controllers/application_controller.ex:328
+#: lib/web/controllers/application_controller.ex:326
 #, elixir-autogen, elixir-format
 msgid "Invalid client credentials provided"
 msgstr "Zadání neplatných pověření klienta"
 
-#: lib/web/controllers/application_controller.ex:336
+#: lib/web/controllers/application_controller.ex:334
 #, elixir-autogen, elixir-format
 msgid "Invalid refresh token provided"
 msgstr "Zadán neplatný token obnovení"
 
-#: lib/web/controllers/application_controller.ex:169
-#: lib/web/controllers/application_controller.ex:400
+#: lib/web/controllers/application_controller.ex:167
+#: lib/web/controllers/application_controller.ex:398
 #, elixir-autogen, elixir-format
 msgid "No application was found with this client_id"
 msgstr "Nebyla nalezena žádná aplikace s tímto client_id"
@@ -1243,17 +1243,17 @@ msgstr "Není oprávněn přistupovat k objektu %{objekt}"
 msgid "Not authorized to access this %{object_type}"
 msgstr "Není oprávněn k přístupu k tomuto %{object_type}"
 
-#: lib/web/controllers/application_controller.ex:278
+#: lib/web/controllers/application_controller.ex:276
 #, elixir-autogen, elixir-format
 msgid "Please slow down the rate of your requests"
 msgstr "Zpomalte prosím tempo svých požadavků"
 
-#: lib/web/controllers/application_controller.ex:266
+#: lib/web/controllers/application_controller.ex:264
 #, elixir-autogen, elixir-format
 msgid "The authorization request is still pending"
 msgstr "Na žádost o povolení se stále čeká"
 
-#: lib/web/controllers/application_controller.ex:248
+#: lib/web/controllers/application_controller.ex:246
 #, elixir-autogen, elixir-format
 msgid "The client_id provided or the device_code associated is invalid"
 msgstr "Zadané client_id nebo přiřazený device_code jsou neplatné"
@@ -1263,7 +1263,7 @@ msgstr "Zadané client_id nebo přiřazený device_code jsou neplatné"
 msgid "The device user code was not provided before approving the application"
 msgstr "Před schválením žádosti nebyl uveden kód uživatele zařízení"
 
-#: lib/web/controllers/application_controller.ex:303
+#: lib/web/controllers/application_controller.ex:301
 #, elixir-autogen, elixir-format
 msgid "The given device_code has expired"
 msgstr "Platnost daného device_code vypršela"
@@ -1273,7 +1273,7 @@ msgstr "Platnost daného device_code vypršela"
 msgid "The given redirect_uri is not in the list of allowed redirect URIs"
 msgstr "Zadané redirect_uri není v seznamu povolených URI pro přesměrování"
 
-#: lib/web/controllers/application_controller.ex:157
+#: lib/web/controllers/application_controller.ex:155
 #, elixir-autogen, elixir-format
 msgid "The given scope is not in the list of the app declared scopes"
 msgstr "Daný rozsah není v seznamu deklarovaných rozsahů aplikace"
@@ -1290,22 +1290,22 @@ msgstr "Platnost daného kódu uživatele vypršela"
 msgid "The given user code is invalid"
 msgstr "Zadaný kód uživatele je neplatný"
 
-#: lib/web/controllers/application_controller.ex:410
+#: lib/web/controllers/application_controller.ex:408
 #, elixir-autogen, elixir-format
 msgid "The provided client_id does not match the provided code"
 msgstr "Zadané client_id neodpovídá zadanému kódu"
 
-#: lib/web/controllers/application_controller.ex:413
+#: lib/web/controllers/application_controller.ex:411
 #, elixir-autogen, elixir-format
 msgid "The provided client_secret is invalid"
 msgstr "Zadaný client_secret je neplatný"
 
-#: lib/web/controllers/application_controller.ex:406
+#: lib/web/controllers/application_controller.ex:404
 #, elixir-autogen, elixir-format
 msgid "The provided code is invalid or expired"
 msgstr "Poskytnutý kód je neplatný nebo jeho platnost vypršela"
 
-#: lib/web/controllers/application_controller.ex:417
+#: lib/web/controllers/application_controller.ex:415
 #, elixir-autogen, elixir-format
 msgid "The provided scope is invalid or not included in the app declared scopes"
 msgstr ""
@@ -1316,17 +1316,17 @@ msgstr ""
 msgid "The scope parameter is not a space separated list of valid scopes"
 msgstr "Parametr rozsah není seznam platných rozsahů oddělený mezerou"
 
-#: lib/web/controllers/application_controller.ex:291
+#: lib/web/controllers/application_controller.ex:289
 #, elixir-autogen, elixir-format
 msgid "The user rejected the requested authorization"
 msgstr "Uživatel odmítl požadovanou autorizaci"
 
-#: lib/web/controllers/application_controller.ex:403
+#: lib/web/controllers/application_controller.ex:401
 #, elixir-autogen, elixir-format
 msgid "This redirect URI is not allowed"
 msgstr "Toto přesměrování URI není povoleno"
 
-#: lib/web/controllers/application_controller.ex:380
+#: lib/web/controllers/application_controller.ex:378
 #, elixir-autogen, elixir-format
 msgid "Token not found"
 msgstr "Token nebyl nalezen"
@@ -1336,28 +1336,28 @@ msgstr "Token nebyl nalezen"
 msgid "Too many requests"
 msgstr "Příliš mnoho požadavků"
 
-#: lib/web/controllers/application_controller.ex:183
+#: lib/web/controllers/application_controller.ex:181
 #, elixir-autogen, elixir-format
 msgid "Unable to produce device code"
 msgstr "Nelze vytvořit kód zařízení"
 
-#: lib/web/controllers/application_controller.ex:372
+#: lib/web/controllers/application_controller.ex:370
 #, elixir-autogen, elixir-format
 msgid "Unable to revoke token"
 msgstr "Nelze odvolat token"
 
-#: lib/web/controllers/application_controller.ex:197
+#: lib/web/controllers/application_controller.ex:195
 #, elixir-autogen, elixir-format
 msgid "You need to pass both client_id and scope as parameters to obtain a device code"
 msgstr ""
 "Chcete-li získat kód zařízení, musíte jako parametry předat client_id a scope"
 
-#: lib/web/controllers/application_controller.ex:135
+#: lib/web/controllers/application_controller.ex:133
 #, elixir-autogen, elixir-format
 msgid "You need to provide a valid redirect_uri to autorize an application"
 msgstr "Pro autorizaci aplikace je třeba zadat platnou redirect_uri"
 
-#: lib/web/controllers/application_controller.ex:125
+#: lib/web/controllers/application_controller.ex:123
 #, elixir-autogen, elixir-format
 msgid "You need to specify client_id, redirect_uri, scope and state to autorize an application"
 msgstr ""
@@ -1394,7 +1394,7 @@ msgstr ""
 msgid "This instance is pending follow approval"
 msgstr ""
 
-#: lib/graphql/schema/custom/timezone.ex:23
+#: lib/graphql/schema/custom/timezone.ex:25
 #, elixir-autogen, elixir-format
 msgid "Timezone ID %{timezone} is invalid"
 msgstr ""
diff --git a/priv/gettext/de/LC_MESSAGES/default.po b/priv/gettext/de/LC_MESSAGES/default.po
index 27ac8c426..7e7ed9f38 100644
--- a/priv/gettext/de/LC_MESSAGES/default.po
+++ b/priv/gettext/de/LC_MESSAGES/default.po
@@ -113,7 +113,7 @@ msgstr ""
 "nur ein Klick von der Aktivierung entfernt. Wenn Sie das nicht waren, "
 "ignorieren Sie diese E-Mail bitte."
 
-#: lib/web/email/participation.ex:114
+#: lib/web/email/participation.ex:115
 #, elixir-autogen, elixir-format
 msgid "Your participation to event %{title} has been approved"
 msgstr "Ihre Teilnahme an der Veranstaltung %{title}wurde akzeptiert"
@@ -144,7 +144,7 @@ msgstr ""
 msgid "Warning"
 msgstr "Warnung"
 
-#: lib/web/email/participation.ex:140
+#: lib/web/email/participation.ex:142
 #, elixir-autogen, elixir-format
 msgid "Confirm your participation to event %{title}"
 msgstr "Meine Teilnahme an der Veranstaltung %{title} zusagen"
@@ -1207,7 +1207,7 @@ msgstr "Was gibt’s heute?"
 
 #: lib/web/templates/email/event_participation_approved.html.heex:98
 #: lib/web/templates/email/event_participation_approved.text.eex:11
-#: lib/web/templates/email/event_participation_confirmed.html.heex:98
+#: lib/web/templates/email/event_participation_confirmed.html.heex:140
 #: lib/web/templates/email/event_participation_confirmed.text.eex:6
 #, elixir-autogen, elixir-format
 msgid "Would you wish to update or cancel your attendance, simply access the event page through the link above and click on the Attending button."
@@ -1643,7 +1643,7 @@ msgstr ""
 "testen."
 
 #: lib/service/metadata/actor.ex:86
-#: lib/service/metadata/actor.ex:92
+#: lib/service/metadata/actor.ex:93
 #: lib/service/metadata/instance.ex:60
 #: lib/service/metadata/instance.ex:66
 #, elixir-autogen, elixir-format
@@ -2408,11 +2408,30 @@ msgid "Participant registration date"
 msgstr "Teilnehmerstatus"
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:113
+#: lib/web/templates/email/event_participation_confirmed.html.heex:122
 #, elixir-autogen, elixir-format
 msgid "Cancel my attendance"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:90
+#: lib/web/templates/email/event_participation_confirmed.html.heex:99
 #, elixir-autogen, elixir-format
 msgid "If you wish to cancel your participation, simply click on the link below."
 msgstr ""
+
+#: lib/web/email/admin.ex:142
+#, elixir-autogen, elixir-format
+msgid "Email configuration test for %{instance}"
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:47
+#: lib/web/templates/email/email_configuration_test.text.eex:3
+#, elixir-autogen, elixir-format
+msgid "If you received this email, the email configuration seems to be correct."
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:18
+#: lib/web/templates/email/email_configuration_test.text.eex:1
+#, elixir-autogen, elixir-format
+msgid "Well done!"
+msgstr ""
diff --git a/priv/gettext/de/LC_MESSAGES/errors.po b/priv/gettext/de/LC_MESSAGES/errors.po
index f468762b1..21e17a9a8 100644
--- a/priv/gettext/de/LC_MESSAGES/errors.po
+++ b/priv/gettext/de/LC_MESSAGES/errors.po
@@ -1216,23 +1216,23 @@ msgstr "Fehler beim Speichern des Reports"
 msgid "Impossible to create application."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:355
+#: lib/web/controllers/application_controller.ex:353
 #, elixir-autogen, elixir-format
 msgid "Incorrect parameters sent. You need to provide at least the grant_type and client_id parameters, depending on the grant type being used."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:328
+#: lib/web/controllers/application_controller.ex:326
 #, elixir-autogen, elixir-format
 msgid "Invalid client credentials provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:336
+#: lib/web/controllers/application_controller.ex:334
 #, elixir-autogen, elixir-format
 msgid "Invalid refresh token provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:169
-#: lib/web/controllers/application_controller.ex:400
+#: lib/web/controllers/application_controller.ex:167
+#: lib/web/controllers/application_controller.ex:398
 #, elixir-autogen, elixir-format
 msgid "No application was found with this client_id"
 msgstr ""
@@ -1258,17 +1258,17 @@ msgstr ""
 msgid "Not authorized to access this %{object_type}"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:278
+#: lib/web/controllers/application_controller.ex:276
 #, elixir-autogen, elixir-format
 msgid "Please slow down the rate of your requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:266
+#: lib/web/controllers/application_controller.ex:264
 #, elixir-autogen, elixir-format
 msgid "The authorization request is still pending"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:248
+#: lib/web/controllers/application_controller.ex:246
 #, elixir-autogen, elixir-format
 msgid "The client_id provided or the device_code associated is invalid"
 msgstr ""
@@ -1278,7 +1278,7 @@ msgstr ""
 msgid "The device user code was not provided before approving the application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:303
+#: lib/web/controllers/application_controller.ex:301
 #, elixir-autogen, elixir-format
 msgid "The given device_code has expired"
 msgstr ""
@@ -1288,7 +1288,7 @@ msgstr ""
 msgid "The given redirect_uri is not in the list of allowed redirect URIs"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:157
+#: lib/web/controllers/application_controller.ex:155
 #, elixir-autogen, elixir-format
 msgid "The given scope is not in the list of the app declared scopes"
 msgstr ""
@@ -1305,22 +1305,22 @@ msgstr ""
 msgid "The given user code is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:410
+#: lib/web/controllers/application_controller.ex:408
 #, elixir-autogen, elixir-format
 msgid "The provided client_id does not match the provided code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:413
+#: lib/web/controllers/application_controller.ex:411
 #, elixir-autogen, elixir-format
 msgid "The provided client_secret is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:406
+#: lib/web/controllers/application_controller.ex:404
 #, elixir-autogen, elixir-format
 msgid "The provided code is invalid or expired"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:417
+#: lib/web/controllers/application_controller.ex:415
 #, elixir-autogen, elixir-format
 msgid "The provided scope is invalid or not included in the app declared scopes"
 msgstr ""
@@ -1330,17 +1330,17 @@ msgstr ""
 msgid "The scope parameter is not a space separated list of valid scopes"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:291
+#: lib/web/controllers/application_controller.ex:289
 #, elixir-autogen, elixir-format
 msgid "The user rejected the requested authorization"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:403
+#: lib/web/controllers/application_controller.ex:401
 #, elixir-autogen, elixir-format
 msgid "This redirect URI is not allowed"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:380
+#: lib/web/controllers/application_controller.ex:378
 #, elixir-autogen, elixir-format, fuzzy
 msgid "Token not found"
 msgstr "Veranstaltung nicht gefunden"
@@ -1350,27 +1350,27 @@ msgstr "Veranstaltung nicht gefunden"
 msgid "Too many requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:183
+#: lib/web/controllers/application_controller.ex:181
 #, elixir-autogen, elixir-format
 msgid "Unable to produce device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:372
+#: lib/web/controllers/application_controller.ex:370
 #, elixir-autogen, elixir-format
 msgid "Unable to revoke token"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:197
+#: lib/web/controllers/application_controller.ex:195
 #, elixir-autogen, elixir-format
 msgid "You need to pass both client_id and scope as parameters to obtain a device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:135
+#: lib/web/controllers/application_controller.ex:133
 #, elixir-autogen, elixir-format
 msgid "You need to provide a valid redirect_uri to autorize an application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:125
+#: lib/web/controllers/application_controller.ex:123
 #, elixir-autogen, elixir-format
 msgid "You need to specify client_id, redirect_uri, scope and state to autorize an application"
 msgstr ""
@@ -1406,7 +1406,7 @@ msgstr ""
 msgid "This instance is pending follow approval"
 msgstr ""
 
-#: lib/graphql/schema/custom/timezone.ex:23
+#: lib/graphql/schema/custom/timezone.ex:25
 #, elixir-autogen, elixir-format
 msgid "Timezone ID %{timezone} is invalid"
 msgstr ""
diff --git a/priv/gettext/default.pot b/priv/gettext/default.pot
index 52fadf538..b7984ecc1 100644
--- a/priv/gettext/default.pot
+++ b/priv/gettext/default.pot
@@ -86,7 +86,7 @@ msgstr ""
 msgid "You created an account on %{host} with this email address. You are one click away from activating it. If this wasn't you, please ignore this email."
 msgstr ""
 
-#: lib/web/email/participation.ex:114
+#: lib/web/email/participation.ex:115
 #, elixir-autogen, elixir-format
 msgid "Your participation to event %{title} has been approved"
 msgstr ""
@@ -116,7 +116,7 @@ msgstr ""
 msgid "Warning"
 msgstr ""
 
-#: lib/web/email/participation.ex:140
+#: lib/web/email/participation.ex:142
 #, elixir-autogen, elixir-format
 msgid "Confirm your participation to event %{title}"
 msgstr ""
@@ -956,7 +956,7 @@ msgstr ""
 
 #: lib/web/templates/email/event_participation_approved.html.heex:98
 #: lib/web/templates/email/event_participation_approved.text.eex:11
-#: lib/web/templates/email/event_participation_confirmed.html.heex:98
+#: lib/web/templates/email/event_participation_confirmed.html.heex:140
 #: lib/web/templates/email/event_participation_confirmed.text.eex:6
 #, elixir-autogen, elixir-format
 msgid "Would you wish to update or cancel your attendance, simply access the event page through the link above and click on the Attending button."
@@ -1270,7 +1270,7 @@ msgid "This is a demonstration site to test Mobilizon."
 msgstr ""
 
 #: lib/service/metadata/actor.ex:86
-#: lib/service/metadata/actor.ex:92
+#: lib/service/metadata/actor.ex:93
 #: lib/service/metadata/instance.ex:60
 #: lib/service/metadata/instance.ex:66
 #, elixir-autogen, elixir-format
@@ -1976,11 +1976,30 @@ msgid "Participant registration date"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:113
+#: lib/web/templates/email/event_participation_confirmed.html.heex:122
 #, elixir-autogen, elixir-format
 msgid "Cancel my attendance"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:90
+#: lib/web/templates/email/event_participation_confirmed.html.heex:99
 #, elixir-autogen, elixir-format
 msgid "If you wish to cancel your participation, simply click on the link below."
 msgstr ""
+
+#: lib/web/email/admin.ex:142
+#, elixir-autogen, elixir-format
+msgid "Email configuration test for %{instance}"
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:47
+#: lib/web/templates/email/email_configuration_test.text.eex:3
+#, elixir-autogen, elixir-format
+msgid "If you received this email, the email configuration seems to be correct."
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:18
+#: lib/web/templates/email/email_configuration_test.text.eex:1
+#, elixir-autogen, elixir-format
+msgid "Well done!"
+msgstr ""
diff --git a/priv/gettext/en/LC_MESSAGES/default.po b/priv/gettext/en/LC_MESSAGES/default.po
index f4276d7d7..93c91c4e9 100644
--- a/priv/gettext/en/LC_MESSAGES/default.po
+++ b/priv/gettext/en/LC_MESSAGES/default.po
@@ -109,7 +109,7 @@ msgstr "Resetting your password is easy. Just press the button below and follow
 msgid "You created an account on %{host} with this email address. You are one click away from activating it. If this wasn't you, please ignore this email."
 msgstr "You created an account on %{host} with this email address. You are one click away from activating it."
 
-#: lib/web/email/participation.ex:114
+#: lib/web/email/participation.ex:115
 #, elixir-autogen, elixir-format
 msgid "Your participation to event %{title} has been approved"
 msgstr "Your participation to event %{title} has been approved"
@@ -139,7 +139,7 @@ msgstr "You requested a new password for your account on %{instance}."
 msgid "Warning"
 msgstr "Warning"
 
-#: lib/web/email/participation.ex:140
+#: lib/web/email/participation.ex:142
 #, elixir-autogen, elixir-format
 msgid "Confirm your participation to event %{title}"
 msgstr "Confirm your participation to event %{title}"
@@ -1009,7 +1009,7 @@ msgstr ""
 
 #: lib/web/templates/email/event_participation_approved.html.heex:98
 #: lib/web/templates/email/event_participation_approved.text.eex:11
-#: lib/web/templates/email/event_participation_confirmed.html.heex:98
+#: lib/web/templates/email/event_participation_confirmed.html.heex:140
 #: lib/web/templates/email/event_participation_confirmed.text.eex:6
 #, elixir-autogen, elixir-format
 msgid "Would you wish to update or cancel your attendance, simply access the event page through the link above and click on the Attending button."
@@ -1323,7 +1323,7 @@ msgid "This is a demonstration site to test Mobilizon."
 msgstr "This is a demonstration site to test the beta version of Mobilizon."
 
 #: lib/service/metadata/actor.ex:86
-#: lib/service/metadata/actor.ex:92
+#: lib/service/metadata/actor.ex:93
 #: lib/service/metadata/instance.ex:60
 #: lib/service/metadata/instance.ex:66
 #, elixir-autogen, elixir-format
@@ -2029,11 +2029,30 @@ msgid "Participant registration date"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:113
+#: lib/web/templates/email/event_participation_confirmed.html.heex:122
 #, elixir-autogen, elixir-format
 msgid "Cancel my attendance"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:90
+#: lib/web/templates/email/event_participation_confirmed.html.heex:99
 #, elixir-autogen, elixir-format
 msgid "If you wish to cancel your participation, simply click on the link below."
 msgstr ""
+
+#: lib/web/email/admin.ex:142
+#, elixir-autogen, elixir-format
+msgid "Email configuration test for %{instance}"
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:47
+#: lib/web/templates/email/email_configuration_test.text.eex:3
+#, elixir-autogen, elixir-format
+msgid "If you received this email, the email configuration seems to be correct."
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:18
+#: lib/web/templates/email/email_configuration_test.text.eex:1
+#, elixir-autogen, elixir-format
+msgid "Well done!"
+msgstr ""
diff --git a/priv/gettext/en/LC_MESSAGES/errors.po b/priv/gettext/en/LC_MESSAGES/errors.po
index 0fad580b7..a53b425f8 100644
--- a/priv/gettext/en/LC_MESSAGES/errors.po
+++ b/priv/gettext/en/LC_MESSAGES/errors.po
@@ -1175,23 +1175,23 @@ msgstr ""
 msgid "Impossible to create application."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:355
+#: lib/web/controllers/application_controller.ex:353
 #, elixir-autogen, elixir-format
 msgid "Incorrect parameters sent. You need to provide at least the grant_type and client_id parameters, depending on the grant type being used."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:328
+#: lib/web/controllers/application_controller.ex:326
 #, elixir-autogen, elixir-format
 msgid "Invalid client credentials provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:336
+#: lib/web/controllers/application_controller.ex:334
 #, elixir-autogen, elixir-format
 msgid "Invalid refresh token provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:169
-#: lib/web/controllers/application_controller.ex:400
+#: lib/web/controllers/application_controller.ex:167
+#: lib/web/controllers/application_controller.ex:398
 #, elixir-autogen, elixir-format
 msgid "No application was found with this client_id"
 msgstr ""
@@ -1217,17 +1217,17 @@ msgstr ""
 msgid "Not authorized to access this %{object_type}"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:278
+#: lib/web/controllers/application_controller.ex:276
 #, elixir-autogen, elixir-format
 msgid "Please slow down the rate of your requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:266
+#: lib/web/controllers/application_controller.ex:264
 #, elixir-autogen, elixir-format
 msgid "The authorization request is still pending"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:248
+#: lib/web/controllers/application_controller.ex:246
 #, elixir-autogen, elixir-format
 msgid "The client_id provided or the device_code associated is invalid"
 msgstr ""
@@ -1237,7 +1237,7 @@ msgstr ""
 msgid "The device user code was not provided before approving the application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:303
+#: lib/web/controllers/application_controller.ex:301
 #, elixir-autogen, elixir-format
 msgid "The given device_code has expired"
 msgstr ""
@@ -1247,7 +1247,7 @@ msgstr ""
 msgid "The given redirect_uri is not in the list of allowed redirect URIs"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:157
+#: lib/web/controllers/application_controller.ex:155
 #, elixir-autogen, elixir-format
 msgid "The given scope is not in the list of the app declared scopes"
 msgstr ""
@@ -1264,22 +1264,22 @@ msgstr ""
 msgid "The given user code is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:410
+#: lib/web/controllers/application_controller.ex:408
 #, elixir-autogen, elixir-format
 msgid "The provided client_id does not match the provided code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:413
+#: lib/web/controllers/application_controller.ex:411
 #, elixir-autogen, elixir-format
 msgid "The provided client_secret is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:406
+#: lib/web/controllers/application_controller.ex:404
 #, elixir-autogen, elixir-format
 msgid "The provided code is invalid or expired"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:417
+#: lib/web/controllers/application_controller.ex:415
 #, elixir-autogen, elixir-format
 msgid "The provided scope is invalid or not included in the app declared scopes"
 msgstr ""
@@ -1289,17 +1289,17 @@ msgstr ""
 msgid "The scope parameter is not a space separated list of valid scopes"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:291
+#: lib/web/controllers/application_controller.ex:289
 #, elixir-autogen, elixir-format
 msgid "The user rejected the requested authorization"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:403
+#: lib/web/controllers/application_controller.ex:401
 #, elixir-autogen, elixir-format
 msgid "This redirect URI is not allowed"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:380
+#: lib/web/controllers/application_controller.ex:378
 #, elixir-autogen, elixir-format, fuzzy
 msgid "Token not found"
 msgstr ""
@@ -1309,27 +1309,27 @@ msgstr ""
 msgid "Too many requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:183
+#: lib/web/controllers/application_controller.ex:181
 #, elixir-autogen, elixir-format
 msgid "Unable to produce device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:372
+#: lib/web/controllers/application_controller.ex:370
 #, elixir-autogen, elixir-format
 msgid "Unable to revoke token"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:197
+#: lib/web/controllers/application_controller.ex:195
 #, elixir-autogen, elixir-format
 msgid "You need to pass both client_id and scope as parameters to obtain a device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:135
+#: lib/web/controllers/application_controller.ex:133
 #, elixir-autogen, elixir-format
 msgid "You need to provide a valid redirect_uri to autorize an application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:125
+#: lib/web/controllers/application_controller.ex:123
 #, elixir-autogen, elixir-format
 msgid "You need to specify client_id, redirect_uri, scope and state to autorize an application"
 msgstr ""
@@ -1365,7 +1365,7 @@ msgstr ""
 msgid "This instance is pending follow approval"
 msgstr ""
 
-#: lib/graphql/schema/custom/timezone.ex:23
+#: lib/graphql/schema/custom/timezone.ex:25
 #, elixir-autogen, elixir-format
 msgid "Timezone ID %{timezone} is invalid"
 msgstr ""
diff --git a/priv/gettext/errors.pot b/priv/gettext/errors.pot
index f2bc71484..43ce04214 100644
--- a/priv/gettext/errors.pot
+++ b/priv/gettext/errors.pot
@@ -1172,23 +1172,23 @@ msgstr ""
 msgid "Impossible to create application."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:355
+#: lib/web/controllers/application_controller.ex:353
 #, elixir-autogen, elixir-format
 msgid "Incorrect parameters sent. You need to provide at least the grant_type and client_id parameters, depending on the grant type being used."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:328
+#: lib/web/controllers/application_controller.ex:326
 #, elixir-autogen, elixir-format
 msgid "Invalid client credentials provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:336
+#: lib/web/controllers/application_controller.ex:334
 #, elixir-autogen, elixir-format
 msgid "Invalid refresh token provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:169
-#: lib/web/controllers/application_controller.ex:400
+#: lib/web/controllers/application_controller.ex:167
+#: lib/web/controllers/application_controller.ex:398
 #, elixir-autogen, elixir-format
 msgid "No application was found with this client_id"
 msgstr ""
@@ -1214,17 +1214,17 @@ msgstr ""
 msgid "Not authorized to access this %{object_type}"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:278
+#: lib/web/controllers/application_controller.ex:276
 #, elixir-autogen, elixir-format
 msgid "Please slow down the rate of your requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:266
+#: lib/web/controllers/application_controller.ex:264
 #, elixir-autogen, elixir-format
 msgid "The authorization request is still pending"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:248
+#: lib/web/controllers/application_controller.ex:246
 #, elixir-autogen, elixir-format
 msgid "The client_id provided or the device_code associated is invalid"
 msgstr ""
@@ -1234,7 +1234,7 @@ msgstr ""
 msgid "The device user code was not provided before approving the application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:303
+#: lib/web/controllers/application_controller.ex:301
 #, elixir-autogen, elixir-format
 msgid "The given device_code has expired"
 msgstr ""
@@ -1244,7 +1244,7 @@ msgstr ""
 msgid "The given redirect_uri is not in the list of allowed redirect URIs"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:157
+#: lib/web/controllers/application_controller.ex:155
 #, elixir-autogen, elixir-format
 msgid "The given scope is not in the list of the app declared scopes"
 msgstr ""
@@ -1261,22 +1261,22 @@ msgstr ""
 msgid "The given user code is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:410
+#: lib/web/controllers/application_controller.ex:408
 #, elixir-autogen, elixir-format
 msgid "The provided client_id does not match the provided code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:413
+#: lib/web/controllers/application_controller.ex:411
 #, elixir-autogen, elixir-format
 msgid "The provided client_secret is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:406
+#: lib/web/controllers/application_controller.ex:404
 #, elixir-autogen, elixir-format
 msgid "The provided code is invalid or expired"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:417
+#: lib/web/controllers/application_controller.ex:415
 #, elixir-autogen, elixir-format
 msgid "The provided scope is invalid or not included in the app declared scopes"
 msgstr ""
@@ -1286,17 +1286,17 @@ msgstr ""
 msgid "The scope parameter is not a space separated list of valid scopes"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:291
+#: lib/web/controllers/application_controller.ex:289
 #, elixir-autogen, elixir-format
 msgid "The user rejected the requested authorization"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:403
+#: lib/web/controllers/application_controller.ex:401
 #, elixir-autogen, elixir-format
 msgid "This redirect URI is not allowed"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:380
+#: lib/web/controllers/application_controller.ex:378
 #, elixir-autogen, elixir-format
 msgid "Token not found"
 msgstr ""
@@ -1306,27 +1306,27 @@ msgstr ""
 msgid "Too many requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:183
+#: lib/web/controllers/application_controller.ex:181
 #, elixir-autogen, elixir-format
 msgid "Unable to produce device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:372
+#: lib/web/controllers/application_controller.ex:370
 #, elixir-autogen, elixir-format
 msgid "Unable to revoke token"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:197
+#: lib/web/controllers/application_controller.ex:195
 #, elixir-autogen, elixir-format
 msgid "You need to pass both client_id and scope as parameters to obtain a device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:135
+#: lib/web/controllers/application_controller.ex:133
 #, elixir-autogen, elixir-format
 msgid "You need to provide a valid redirect_uri to autorize an application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:125
+#: lib/web/controllers/application_controller.ex:123
 #, elixir-autogen, elixir-format
 msgid "You need to specify client_id, redirect_uri, scope and state to autorize an application"
 msgstr ""
@@ -1362,7 +1362,7 @@ msgstr ""
 msgid "This instance is pending follow approval"
 msgstr ""
 
-#: lib/graphql/schema/custom/timezone.ex:23
+#: lib/graphql/schema/custom/timezone.ex:25
 #, elixir-autogen, elixir-format
 msgid "Timezone ID %{timezone} is invalid"
 msgstr ""
diff --git a/priv/gettext/es/LC_MESSAGES/default.po b/priv/gettext/es/LC_MESSAGES/default.po
index 5a0789a23..90574afca 100644
--- a/priv/gettext/es/LC_MESSAGES/default.po
+++ b/priv/gettext/es/LC_MESSAGES/default.po
@@ -112,7 +112,7 @@ msgstr ""
 "Has creado una cuenta en %{host} con esta dirección de correo electrónico. "
 "Estás a un clic de activarlo. Si no eras tú, ignora este correo electrónico."
 
-#: lib/web/email/participation.ex:114
+#: lib/web/email/participation.ex:115
 #, elixir-autogen, elixir-format
 msgid "Your participation to event %{title} has been approved"
 msgstr "Su participación en el evento %{title} ha sido aprobada"
@@ -142,7 +142,7 @@ msgstr "Solicitó una nueva contraseña para su cuenta en %{instance}."
 msgid "Warning"
 msgstr "Advertencia"
 
-#: lib/web/email/participation.ex:140
+#: lib/web/email/participation.ex:142
 #, elixir-autogen, elixir-format
 msgid "Confirm your participation to event %{title}"
 msgstr "Confirme su participación en el evento %{title}"
@@ -1178,7 +1178,7 @@ msgstr "Qué pasa hoy?"
 
 #: lib/web/templates/email/event_participation_approved.html.heex:98
 #: lib/web/templates/email/event_participation_approved.text.eex:11
-#: lib/web/templates/email/event_participation_confirmed.html.heex:98
+#: lib/web/templates/email/event_participation_confirmed.html.heex:140
 #: lib/web/templates/email/event_participation_confirmed.text.eex:6
 #, elixir-autogen, elixir-format
 msgid "Would you wish to update or cancel your attendance, simply access the event page through the link above and click on the Attending button."
@@ -1596,7 +1596,7 @@ msgid "This is a demonstration site to test Mobilizon."
 msgstr "Este es un sitio de demostración para probar Mobilizon."
 
 #: lib/service/metadata/actor.ex:86
-#: lib/service/metadata/actor.ex:92
+#: lib/service/metadata/actor.ex:93
 #: lib/service/metadata/instance.ex:60
 #: lib/service/metadata/instance.ex:66
 #, elixir-autogen, elixir-format
@@ -2353,11 +2353,30 @@ msgid "Participant registration date"
 msgstr "Fecha de registro del participante"
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:113
+#: lib/web/templates/email/event_participation_confirmed.html.heex:122
 #, elixir-autogen, elixir-format
 msgid "Cancel my attendance"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:90
+#: lib/web/templates/email/event_participation_confirmed.html.heex:99
 #, elixir-autogen, elixir-format
 msgid "If you wish to cancel your participation, simply click on the link below."
 msgstr ""
+
+#: lib/web/email/admin.ex:142
+#, elixir-autogen, elixir-format
+msgid "Email configuration test for %{instance}"
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:47
+#: lib/web/templates/email/email_configuration_test.text.eex:3
+#, elixir-autogen, elixir-format
+msgid "If you received this email, the email configuration seems to be correct."
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:18
+#: lib/web/templates/email/email_configuration_test.text.eex:1
+#, elixir-autogen, elixir-format
+msgid "Well done!"
+msgstr ""
diff --git a/priv/gettext/es/LC_MESSAGES/errors.po b/priv/gettext/es/LC_MESSAGES/errors.po
index 44c8bbe33..e5dc3ffdb 100644
--- a/priv/gettext/es/LC_MESSAGES/errors.po
+++ b/priv/gettext/es/LC_MESSAGES/errors.po
@@ -1202,23 +1202,23 @@ msgstr "Error al guardar el informe"
 msgid "Impossible to create application."
 msgstr "Imposible crear una aplicación"
 
-#: lib/web/controllers/application_controller.ex:355
+#: lib/web/controllers/application_controller.ex:353
 #, elixir-autogen, elixir-format
 msgid "Incorrect parameters sent. You need to provide at least the grant_type and client_id parameters, depending on the grant type being used."
 msgstr "Se enviaron parámetros incorrectos. Debes proporcionar al menos los parámetros grant_type y client_id, dependiendo del grant_type que se esté usando."
 
-#: lib/web/controllers/application_controller.ex:328
+#: lib/web/controllers/application_controller.ex:326
 #, elixir-autogen, elixir-format
 msgid "Invalid client credentials provided"
 msgstr "Se han provisto credenciales de cliente no válidas"
 
-#: lib/web/controllers/application_controller.ex:336
+#: lib/web/controllers/application_controller.ex:334
 #, elixir-autogen, elixir-format
 msgid "Invalid refresh token provided"
 msgstr "Se ha provisto un token de refrescado inválido"
 
-#: lib/web/controllers/application_controller.ex:169
-#: lib/web/controllers/application_controller.ex:400
+#: lib/web/controllers/application_controller.ex:167
+#: lib/web/controllers/application_controller.ex:398
 #, elixir-autogen, elixir-format
 msgid "No application was found with this client_id"
 msgstr "No se ha encontrado una aplicación con este client_id"
@@ -1244,17 +1244,17 @@ msgstr "No está autorizado a acceder al objeto %{object}"
 msgid "Not authorized to access this %{object_type}"
 msgstr "No está autorizado a acceder a este %{object_type}"
 
-#: lib/web/controllers/application_controller.ex:278
+#: lib/web/controllers/application_controller.ex:276
 #, elixir-autogen, elixir-format
 msgid "Please slow down the rate of your requests"
 msgstr "Por favor reduce la frecuencia de tus peticiones"
 
-#: lib/web/controllers/application_controller.ex:266
+#: lib/web/controllers/application_controller.ex:264
 #, elixir-autogen, elixir-format
 msgid "The authorization request is still pending"
 msgstr "La solicitud de autorización todavía está pendiente"
 
-#: lib/web/controllers/application_controller.ex:248
+#: lib/web/controllers/application_controller.ex:246
 #, elixir-autogen, elixir-format
 msgid "The client_id provided or the device_code associated is invalid"
 msgstr "El client_id provisto o el device_code asociado es inválido"
@@ -1264,7 +1264,7 @@ msgstr "El client_id provisto o el device_code asociado es inválido"
 msgid "The device user code was not provided before approving the application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:303
+#: lib/web/controllers/application_controller.ex:301
 #, elixir-autogen, elixir-format
 msgid "The given device_code has expired"
 msgstr ""
@@ -1274,7 +1274,7 @@ msgstr ""
 msgid "The given redirect_uri is not in the list of allowed redirect URIs"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:157
+#: lib/web/controllers/application_controller.ex:155
 #, elixir-autogen, elixir-format
 msgid "The given scope is not in the list of the app declared scopes"
 msgstr ""
@@ -1291,22 +1291,22 @@ msgstr ""
 msgid "The given user code is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:410
+#: lib/web/controllers/application_controller.ex:408
 #, elixir-autogen, elixir-format
 msgid "The provided client_id does not match the provided code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:413
+#: lib/web/controllers/application_controller.ex:411
 #, elixir-autogen, elixir-format
 msgid "The provided client_secret is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:406
+#: lib/web/controllers/application_controller.ex:404
 #, elixir-autogen, elixir-format
 msgid "The provided code is invalid or expired"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:417
+#: lib/web/controllers/application_controller.ex:415
 #, elixir-autogen, elixir-format
 msgid "The provided scope is invalid or not included in the app declared scopes"
 msgstr ""
@@ -1316,17 +1316,17 @@ msgstr ""
 msgid "The scope parameter is not a space separated list of valid scopes"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:291
+#: lib/web/controllers/application_controller.ex:289
 #, elixir-autogen, elixir-format
 msgid "The user rejected the requested authorization"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:403
+#: lib/web/controllers/application_controller.ex:401
 #, elixir-autogen, elixir-format
 msgid "This redirect URI is not allowed"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:380
+#: lib/web/controllers/application_controller.ex:378
 #, elixir-autogen, elixir-format, fuzzy
 msgid "Token not found"
 msgstr "Token no encontrado"
@@ -1336,27 +1336,27 @@ msgstr "Token no encontrado"
 msgid "Too many requests"
 msgstr "Demasiadas peticiones"
 
-#: lib/web/controllers/application_controller.ex:183
+#: lib/web/controllers/application_controller.ex:181
 #, elixir-autogen, elixir-format
 msgid "Unable to produce device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:372
+#: lib/web/controllers/application_controller.ex:370
 #, elixir-autogen, elixir-format
 msgid "Unable to revoke token"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:197
+#: lib/web/controllers/application_controller.ex:195
 #, elixir-autogen, elixir-format
 msgid "You need to pass both client_id and scope as parameters to obtain a device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:135
+#: lib/web/controllers/application_controller.ex:133
 #, elixir-autogen, elixir-format
 msgid "You need to provide a valid redirect_uri to autorize an application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:125
+#: lib/web/controllers/application_controller.ex:123
 #, elixir-autogen, elixir-format
 msgid "You need to specify client_id, redirect_uri, scope and state to autorize an application"
 msgstr ""
@@ -1392,7 +1392,7 @@ msgstr ""
 msgid "This instance is pending follow approval"
 msgstr ""
 
-#: lib/graphql/schema/custom/timezone.ex:23
+#: lib/graphql/schema/custom/timezone.ex:25
 #, elixir-autogen, elixir-format
 msgid "Timezone ID %{timezone} is invalid"
 msgstr ""
diff --git a/priv/gettext/fi/LC_MESSAGES/default.po b/priv/gettext/fi/LC_MESSAGES/default.po
index 592633dec..2b01c700c 100644
--- a/priv/gettext/fi/LC_MESSAGES/default.po
+++ b/priv/gettext/fi/LC_MESSAGES/default.po
@@ -111,7 +111,7 @@ msgstr ""
 "yhdellä napsautuksella. Jos et luonut tiliä itse, voit jättää tämän viestin "
 "huomiotta."
 
-#: lib/web/email/participation.ex:114
+#: lib/web/email/participation.ex:115
 #, elixir-autogen, elixir-format
 msgid "Your participation to event %{title} has been approved"
 msgstr "Osallistumisesi tapahtumaan %{title} on hyväksytty"
@@ -141,7 +141,7 @@ msgstr "Pyysit uutta salasanaa tilillesi palvelimella %{instance}."
 msgid "Warning"
 msgstr "Varoitus"
 
-#: lib/web/email/participation.ex:140
+#: lib/web/email/participation.ex:142
 #, elixir-autogen, elixir-format
 msgid "Confirm your participation to event %{title}"
 msgstr "Vahvista osallistumisesi tapahtumaan %{title}"
@@ -1159,7 +1159,7 @@ msgstr "Mitä tänään tapahtuu?"
 
 #: lib/web/templates/email/event_participation_approved.html.heex:98
 #: lib/web/templates/email/event_participation_approved.text.eex:11
-#: lib/web/templates/email/event_participation_confirmed.html.heex:98
+#: lib/web/templates/email/event_participation_confirmed.html.heex:140
 #: lib/web/templates/email/event_participation_confirmed.text.eex:6
 #, elixir-autogen, elixir-format
 msgid "Would you wish to update or cancel your attendance, simply access the event page through the link above and click on the Attending button."
@@ -1570,7 +1570,7 @@ msgid "This is a demonstration site to test Mobilizon."
 msgstr "Tämä on koekäyttöön tarkoitettu Mobilizonin esittelysivu."
 
 #: lib/service/metadata/actor.ex:86
-#: lib/service/metadata/actor.ex:92
+#: lib/service/metadata/actor.ex:93
 #: lib/service/metadata/instance.ex:60
 #: lib/service/metadata/instance.ex:66
 #, elixir-autogen, elixir-format
@@ -2293,11 +2293,30 @@ msgid "Participant registration date"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:113
+#: lib/web/templates/email/event_participation_confirmed.html.heex:122
 #, elixir-autogen, elixir-format
 msgid "Cancel my attendance"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:90
+#: lib/web/templates/email/event_participation_confirmed.html.heex:99
 #, elixir-autogen, elixir-format
 msgid "If you wish to cancel your participation, simply click on the link below."
 msgstr ""
+
+#: lib/web/email/admin.ex:142
+#, elixir-autogen, elixir-format
+msgid "Email configuration test for %{instance}"
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:47
+#: lib/web/templates/email/email_configuration_test.text.eex:3
+#, elixir-autogen, elixir-format
+msgid "If you received this email, the email configuration seems to be correct."
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:18
+#: lib/web/templates/email/email_configuration_test.text.eex:1
+#, elixir-autogen, elixir-format
+msgid "Well done!"
+msgstr ""
diff --git a/priv/gettext/fi/LC_MESSAGES/errors.po b/priv/gettext/fi/LC_MESSAGES/errors.po
index 34ba77eb9..478c1105b 100644
--- a/priv/gettext/fi/LC_MESSAGES/errors.po
+++ b/priv/gettext/fi/LC_MESSAGES/errors.po
@@ -1178,23 +1178,23 @@ msgstr "Virhe raporttia tallennettaessa"
 msgid "Impossible to create application."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:355
+#: lib/web/controllers/application_controller.ex:353
 #, elixir-autogen, elixir-format
 msgid "Incorrect parameters sent. You need to provide at least the grant_type and client_id parameters, depending on the grant type being used."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:328
+#: lib/web/controllers/application_controller.ex:326
 #, elixir-autogen, elixir-format
 msgid "Invalid client credentials provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:336
+#: lib/web/controllers/application_controller.ex:334
 #, elixir-autogen, elixir-format
 msgid "Invalid refresh token provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:169
-#: lib/web/controllers/application_controller.ex:400
+#: lib/web/controllers/application_controller.ex:167
+#: lib/web/controllers/application_controller.ex:398
 #, elixir-autogen, elixir-format
 msgid "No application was found with this client_id"
 msgstr ""
@@ -1220,17 +1220,17 @@ msgstr ""
 msgid "Not authorized to access this %{object_type}"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:278
+#: lib/web/controllers/application_controller.ex:276
 #, elixir-autogen, elixir-format
 msgid "Please slow down the rate of your requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:266
+#: lib/web/controllers/application_controller.ex:264
 #, elixir-autogen, elixir-format
 msgid "The authorization request is still pending"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:248
+#: lib/web/controllers/application_controller.ex:246
 #, elixir-autogen, elixir-format
 msgid "The client_id provided or the device_code associated is invalid"
 msgstr ""
@@ -1240,7 +1240,7 @@ msgstr ""
 msgid "The device user code was not provided before approving the application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:303
+#: lib/web/controllers/application_controller.ex:301
 #, elixir-autogen, elixir-format
 msgid "The given device_code has expired"
 msgstr ""
@@ -1250,7 +1250,7 @@ msgstr ""
 msgid "The given redirect_uri is not in the list of allowed redirect URIs"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:157
+#: lib/web/controllers/application_controller.ex:155
 #, elixir-autogen, elixir-format
 msgid "The given scope is not in the list of the app declared scopes"
 msgstr ""
@@ -1267,22 +1267,22 @@ msgstr ""
 msgid "The given user code is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:410
+#: lib/web/controllers/application_controller.ex:408
 #, elixir-autogen, elixir-format
 msgid "The provided client_id does not match the provided code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:413
+#: lib/web/controllers/application_controller.ex:411
 #, elixir-autogen, elixir-format
 msgid "The provided client_secret is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:406
+#: lib/web/controllers/application_controller.ex:404
 #, elixir-autogen, elixir-format
 msgid "The provided code is invalid or expired"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:417
+#: lib/web/controllers/application_controller.ex:415
 #, elixir-autogen, elixir-format
 msgid "The provided scope is invalid or not included in the app declared scopes"
 msgstr ""
@@ -1292,17 +1292,17 @@ msgstr ""
 msgid "The scope parameter is not a space separated list of valid scopes"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:291
+#: lib/web/controllers/application_controller.ex:289
 #, elixir-autogen, elixir-format
 msgid "The user rejected the requested authorization"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:403
+#: lib/web/controllers/application_controller.ex:401
 #, elixir-autogen, elixir-format
 msgid "This redirect URI is not allowed"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:380
+#: lib/web/controllers/application_controller.ex:378
 #, elixir-autogen, elixir-format, fuzzy
 msgid "Token not found"
 msgstr "Tapahtumaa ei löydy"
@@ -1312,27 +1312,27 @@ msgstr "Tapahtumaa ei löydy"
 msgid "Too many requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:183
+#: lib/web/controllers/application_controller.ex:181
 #, elixir-autogen, elixir-format
 msgid "Unable to produce device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:372
+#: lib/web/controllers/application_controller.ex:370
 #, elixir-autogen, elixir-format
 msgid "Unable to revoke token"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:197
+#: lib/web/controllers/application_controller.ex:195
 #, elixir-autogen, elixir-format
 msgid "You need to pass both client_id and scope as parameters to obtain a device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:135
+#: lib/web/controllers/application_controller.ex:133
 #, elixir-autogen, elixir-format
 msgid "You need to provide a valid redirect_uri to autorize an application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:125
+#: lib/web/controllers/application_controller.ex:123
 #, elixir-autogen, elixir-format
 msgid "You need to specify client_id, redirect_uri, scope and state to autorize an application"
 msgstr ""
@@ -1368,7 +1368,7 @@ msgstr ""
 msgid "This instance is pending follow approval"
 msgstr ""
 
-#: lib/graphql/schema/custom/timezone.ex:23
+#: lib/graphql/schema/custom/timezone.ex:25
 #, elixir-autogen, elixir-format
 msgid "Timezone ID %{timezone} is invalid"
 msgstr ""
diff --git a/priv/gettext/fr/LC_MESSAGES/default.po b/priv/gettext/fr/LC_MESSAGES/default.po
index b0e81f70f..f99961124 100644
--- a/priv/gettext/fr/LC_MESSAGES/default.po
+++ b/priv/gettext/fr/LC_MESSAGES/default.po
@@ -10,7 +10,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: \n"
 "POT-Creation-Date: \n"
-"PO-Revision-Date: 2023-12-01 09:02+0100\n"
+"PO-Revision-Date: 2023-12-06 18:50+0100\n"
 "Last-Translator: Thomas Citharel <thomas.citharel@framasoft.org>\n"
 "Language-Team: French <https://weblate.framasoft.org/projects/mobilizon/backend/fr/>\n"
 "Language: fr\n"
@@ -88,7 +88,7 @@ msgstr "Réinitialiser votre mot de passe est facile. Cliquez simplement sur le
 msgid "You created an account on %{host} with this email address. You are one click away from activating it. If this wasn't you, please ignore this email."
 msgstr "Vous avez créé un compte sur %{host} avec cette adresse email. Vous êtes à un clic de l'activer."
 
-#: lib/web/email/participation.ex:114
+#: lib/web/email/participation.ex:115
 msgid "Your participation to event %{title} has been approved"
 msgstr "Votre participation à l'événement %{title} a été approuvée"
 
@@ -112,7 +112,7 @@ msgstr "Vous avez demandé un nouveau mot de passe pour votre compte sur %{insta
 msgid "Warning"
 msgstr "Attention"
 
-#: lib/web/email/participation.ex:140
+#: lib/web/email/participation.ex:142
 msgid "Confirm your participation to event %{title}"
 msgstr "Confirmer ma participation à l'événement %{title}"
 
@@ -784,7 +784,7 @@ msgstr "Voir l'événement mis à jour sur : %{link}"
 msgid "What's up today?"
 msgstr "Quoi de neuf aujourd'hui ?"
 
-#: lib/web/templates/email/event_participation_approved.html.heex:98 lib/web/templates/email/event_participation_approved.text.eex:11 lib/web/templates/email/event_participation_confirmed.html.heex:98 lib/web/templates/email/event_participation_confirmed.text.eex:6
+#: lib/web/templates/email/event_participation_approved.html.heex:98 lib/web/templates/email/event_participation_approved.text.eex:11 lib/web/templates/email/event_participation_confirmed.html.heex:140 lib/web/templates/email/event_participation_confirmed.text.eex:6
 msgid "Would you wish to update or cancel your attendance, simply access the event page through the link above and click on the Attending button."
 msgstr "Si vous souhaitez mettre à jour ou annuler votre participation, il vous suffit d'accéder à la page de l'événement par le lien ci-dessus et de cliquer sur le bouton Participer."
 
@@ -1028,7 +1028,7 @@ msgstr "Nous sommes désolé·e·s, mais quelque chose s’est mal passé de not
 msgid "This is a demonstration site to test Mobilizon."
 msgstr "Ceci est un site de démonstration permettant de tester Mobilizon."
 
-#: lib/service/metadata/actor.ex:86 lib/service/metadata/actor.ex:92 lib/service/metadata/instance.ex:60 lib/service/metadata/instance.ex:66
+#: lib/service/metadata/actor.ex:86 lib/service/metadata/actor.ex:93 lib/service/metadata/instance.ex:60 lib/service/metadata/instance.ex:66
 msgid "%{name}'s feed"
 msgstr "Flux de %{name}"
 
@@ -1559,10 +1559,22 @@ msgstr "Événements signalés"
 msgid "Participant registration date"
 msgstr "Date d'inscription du participant"
 
-#: lib/web/templates/email/anonymous_participation_confirmation.html.heex:113
+#: lib/web/templates/email/anonymous_participation_confirmation.html.heex:113 lib/web/templates/email/event_participation_confirmed.html.heex:122
 msgid "Cancel my attendance"
 msgstr "Annuler ma participation"
 
-#: lib/web/templates/email/anonymous_participation_confirmation.html.heex:90
+#: lib/web/templates/email/anonymous_participation_confirmation.html.heex:90 lib/web/templates/email/event_participation_confirmed.html.heex:99
 msgid "If you wish to cancel your participation, simply click on the link below."
 msgstr "Si vous souhaitez annuler votre participation, il vous suffit de cliquer sur le lien ci-dessous."
+
+#: lib/web/email/admin.ex:142
+msgid "Email configuration test for %{instance}"
+msgstr "Test de configuration des e-mails pour %{instance}"
+
+#: lib/web/templates/email/email_configuration_test.html.heex:47 lib/web/templates/email/email_configuration_test.text.eex:3
+msgid "If you received this email, the email configuration seems to be correct."
+msgstr "Si vous avez reçu cet e-mail, la configuration des e-mails semble correcte."
+
+#: lib/web/templates/email/email_configuration_test.html.heex:18 lib/web/templates/email/email_configuration_test.text.eex:1
+msgid "Well done!"
+msgstr "Bien joué !"
diff --git a/priv/gettext/fr/LC_MESSAGES/errors.po b/priv/gettext/fr/LC_MESSAGES/errors.po
index db7828675..b18e13cd3 100644
--- a/priv/gettext/fr/LC_MESSAGES/errors.po
+++ b/priv/gettext/fr/LC_MESSAGES/errors.po
@@ -1174,25 +1174,25 @@ msgstr "Erreur lors de la révocation du jeton"
 msgid "Impossible to create application."
 msgstr "Impossible de créer l'application."
 
-#: lib/web/controllers/application_controller.ex:355
+#: lib/web/controllers/application_controller.ex:353
 #, elixir-autogen, elixir-format
 msgid "Incorrect parameters sent. You need to provide at least the grant_type and client_id parameters, depending on the grant type being used."
 msgstr ""
 "Paramètres envoyés incorrects. Vous devez au moins fournir les paramètres grant_type et client_id, en fonction du type d’autorisation "
 "utilisée."
 
-#: lib/web/controllers/application_controller.ex:328
+#: lib/web/controllers/application_controller.ex:326
 #, elixir-autogen, elixir-format
 msgid "Invalid client credentials provided"
 msgstr "Les identifiants clients fournis sont invalides"
 
-#: lib/web/controllers/application_controller.ex:336
+#: lib/web/controllers/application_controller.ex:334
 #, elixir-autogen, elixir-format
 msgid "Invalid refresh token provided"
 msgstr "Le jeton de rafraîchissement fourni est invalide"
 
-#: lib/web/controllers/application_controller.ex:169
-#: lib/web/controllers/application_controller.ex:400
+#: lib/web/controllers/application_controller.ex:167
+#: lib/web/controllers/application_controller.ex:398
 #, elixir-autogen, elixir-format
 msgid "No application was found with this client_id"
 msgstr "Aucune application n'a été trouvée avec ce client_id"
@@ -1218,17 +1218,17 @@ msgstr "Non autorisé à accéder à l'objet %{object}"
 msgid "Not authorized to access this %{object_type}"
 msgstr "Non autorisé à accéder à ce %{object_type}"
 
-#: lib/web/controllers/application_controller.ex:278
+#: lib/web/controllers/application_controller.ex:276
 #, elixir-autogen, elixir-format
 msgid "Please slow down the rate of your requests"
 msgstr "Merci de réduire le rythme de vos requêtes"
 
-#: lib/web/controllers/application_controller.ex:266
+#: lib/web/controllers/application_controller.ex:264
 #, elixir-autogen, elixir-format
 msgid "The authorization request is still pending"
 msgstr "La requête d'autorisation est toujours en attente"
 
-#: lib/web/controllers/application_controller.ex:248
+#: lib/web/controllers/application_controller.ex:246
 #, elixir-autogen, elixir-format
 msgid "The client_id provided or the device_code associated is invalid"
 msgstr "Le client_id fourni ou device_code associé n'est pas valide"
@@ -1238,7 +1238,7 @@ msgstr "Le client_id fourni ou device_code associé n'est pas valide"
 msgid "The device user code was not provided before approving the application"
 msgstr "Le code utilisateur de l'appareil n'a pas été fourni avant l'approbation de la demande"
 
-#: lib/web/controllers/application_controller.ex:303
+#: lib/web/controllers/application_controller.ex:301
 #, elixir-autogen, elixir-format
 msgid "The given device_code has expired"
 msgstr "Le device_code donné a expiré"
@@ -1248,7 +1248,7 @@ msgstr "Le device_code donné a expiré"
 msgid "The given redirect_uri is not in the list of allowed redirect URIs"
 msgstr "Le redirect_uri donné ne figure pas dans la liste des URI de redirection autorisées"
 
-#: lib/web/controllers/application_controller.ex:157
+#: lib/web/controllers/application_controller.ex:155
 #, elixir-autogen, elixir-format
 msgid "The given scope is not in the list of the app declared scopes"
 msgstr "Le champ d'application donné n'est pas dans la liste des champs d'application déclarés par l'application"
@@ -1265,22 +1265,22 @@ msgstr "Le code utilisateur donné a expiré"
 msgid "The given user code is invalid"
 msgstr "Le code utilisateur donné n'est pas valide"
 
-#: lib/web/controllers/application_controller.ex:410
+#: lib/web/controllers/application_controller.ex:408
 #, elixir-autogen, elixir-format
 msgid "The provided client_id does not match the provided code"
 msgstr "Le client_id fourni ne correspond pas au code fourni"
 
-#: lib/web/controllers/application_controller.ex:413
+#: lib/web/controllers/application_controller.ex:411
 #, elixir-autogen, elixir-format
 msgid "The provided client_secret is invalid"
 msgstr "Le client_secret fourni n'est pas valide"
 
-#: lib/web/controllers/application_controller.ex:406
+#: lib/web/controllers/application_controller.ex:404
 #, elixir-autogen, elixir-format
 msgid "The provided code is invalid or expired"
 msgstr "Le code fourni n'est pas valide ou a expiré"
 
-#: lib/web/controllers/application_controller.ex:417
+#: lib/web/controllers/application_controller.ex:415
 #, elixir-autogen, elixir-format
 msgid "The provided scope is invalid or not included in the app declared scopes"
 msgstr "Le champ d'application fourni n'est pas valide ou n'est pas inclus dans les champs d'application déclarés de l'application"
@@ -1290,17 +1290,17 @@ msgstr "Le champ d'application fourni n'est pas valide ou n'est pas inclus dans
 msgid "The scope parameter is not a space separated list of valid scopes"
 msgstr "Le paramètre scope n'est pas une liste de champs d'application valides séparés par des espaces"
 
-#: lib/web/controllers/application_controller.ex:291
+#: lib/web/controllers/application_controller.ex:289
 #, elixir-autogen, elixir-format
 msgid "The user rejected the requested authorization"
 msgstr "L'utilisateur a refusé l'autorisation demandée"
 
-#: lib/web/controllers/application_controller.ex:403
+#: lib/web/controllers/application_controller.ex:401
 #, elixir-autogen, elixir-format
 msgid "This redirect URI is not allowed"
 msgstr "Cette URI de redirection n'est pas autorisée"
 
-#: lib/web/controllers/application_controller.ex:380
+#: lib/web/controllers/application_controller.ex:378
 #, elixir-autogen, elixir-format
 msgid "Token not found"
 msgstr "Jeton non trouvé"
@@ -1310,27 +1310,27 @@ msgstr "Jeton non trouvé"
 msgid "Too many requests"
 msgstr "Trop de requêtes"
 
-#: lib/web/controllers/application_controller.ex:183
+#: lib/web/controllers/application_controller.ex:181
 #, elixir-autogen, elixir-format
 msgid "Unable to produce device code"
 msgstr "Impossible de produire un device code"
 
-#: lib/web/controllers/application_controller.ex:372
+#: lib/web/controllers/application_controller.ex:370
 #, elixir-autogen, elixir-format
 msgid "Unable to revoke token"
 msgstr "Impossible de révoquer le jeton"
 
-#: lib/web/controllers/application_controller.ex:197
+#: lib/web/controllers/application_controller.ex:195
 #, elixir-autogen, elixir-format
 msgid "You need to pass both client_id and scope as parameters to obtain a device code"
 msgstr "Pour obtenir un code d'appareil, vous devez passer en paramètre le client_id et le scope"
 
-#: lib/web/controllers/application_controller.ex:135
+#: lib/web/controllers/application_controller.ex:133
 #, elixir-autogen, elixir-format
 msgid "You need to provide a valid redirect_uri to autorize an application"
 msgstr "Vous devez fournir un redirect_uri valide pour autoriser une application"
 
-#: lib/web/controllers/application_controller.ex:125
+#: lib/web/controllers/application_controller.ex:123
 #, elixir-autogen, elixir-format
 msgid "You need to specify client_id, redirect_uri, scope and state to autorize an application"
 msgstr "Vous devez spécifier client_id, redirect_uri, scope et state pour autoriser une application"
@@ -1366,7 +1366,7 @@ msgstr "Le même abonnement push a déjà été enregistré"
 msgid "This instance is pending follow approval"
 msgstr "Cette instance est en attente d'une approbation de suivi"
 
-#: lib/graphql/schema/custom/timezone.ex:23
+#: lib/graphql/schema/custom/timezone.ex:25
 #, elixir-autogen, elixir-format
 msgid "Timezone ID %{timezone} is invalid"
 msgstr "L'ID de fuseau horaire %{timezone} est invalide"
diff --git a/priv/gettext/gd/LC_MESSAGES/default.po b/priv/gettext/gd/LC_MESSAGES/default.po
index 3861efd6e..a40afd486 100644
--- a/priv/gettext/gd/LC_MESSAGES/default.po
+++ b/priv/gettext/gd/LC_MESSAGES/default.po
@@ -107,7 +107,7 @@ msgstr ""
 msgid "You created an account on %{host} with this email address. You are one click away from activating it. If this wasn't you, please ignore this email."
 msgstr ""
 
-#: lib/web/email/participation.ex:114
+#: lib/web/email/participation.ex:115
 #, elixir-autogen, elixir-format
 msgid "Your participation to event %{title} has been approved"
 msgstr ""
@@ -137,7 +137,7 @@ msgstr ""
 msgid "Warning"
 msgstr ""
 
-#: lib/web/email/participation.ex:140
+#: lib/web/email/participation.ex:142
 #, elixir-autogen, elixir-format
 msgid "Confirm your participation to event %{title}"
 msgstr ""
@@ -989,7 +989,7 @@ msgstr ""
 
 #: lib/web/templates/email/event_participation_approved.html.heex:98
 #: lib/web/templates/email/event_participation_approved.text.eex:11
-#: lib/web/templates/email/event_participation_confirmed.html.heex:98
+#: lib/web/templates/email/event_participation_confirmed.html.heex:140
 #: lib/web/templates/email/event_participation_confirmed.text.eex:6
 #, elixir-autogen, elixir-format
 msgid "Would you wish to update or cancel your attendance, simply access the event page through the link above and click on the Attending button."
@@ -1303,7 +1303,7 @@ msgid "This is a demonstration site to test Mobilizon."
 msgstr ""
 
 #: lib/service/metadata/actor.ex:86
-#: lib/service/metadata/actor.ex:92
+#: lib/service/metadata/actor.ex:93
 #: lib/service/metadata/instance.ex:60
 #: lib/service/metadata/instance.ex:66
 #, elixir-autogen, elixir-format
@@ -2011,11 +2011,30 @@ msgid "Participant registration date"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:113
+#: lib/web/templates/email/event_participation_confirmed.html.heex:122
 #, elixir-autogen, elixir-format
 msgid "Cancel my attendance"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:90
+#: lib/web/templates/email/event_participation_confirmed.html.heex:99
 #, elixir-autogen, elixir-format
 msgid "If you wish to cancel your participation, simply click on the link below."
 msgstr ""
+
+#: lib/web/email/admin.ex:142
+#, elixir-autogen, elixir-format
+msgid "Email configuration test for %{instance}"
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:47
+#: lib/web/templates/email/email_configuration_test.text.eex:3
+#, elixir-autogen, elixir-format
+msgid "If you received this email, the email configuration seems to be correct."
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:18
+#: lib/web/templates/email/email_configuration_test.text.eex:1
+#, elixir-autogen, elixir-format
+msgid "Well done!"
+msgstr ""
diff --git a/priv/gettext/gd/LC_MESSAGES/errors.po b/priv/gettext/gd/LC_MESSAGES/errors.po
index 5903780d8..9fa4ea687 100644
--- a/priv/gettext/gd/LC_MESSAGES/errors.po
+++ b/priv/gettext/gd/LC_MESSAGES/errors.po
@@ -1178,23 +1178,23 @@ msgstr ""
 msgid "Impossible to create application."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:355
+#: lib/web/controllers/application_controller.ex:353
 #, elixir-autogen, elixir-format
 msgid "Incorrect parameters sent. You need to provide at least the grant_type and client_id parameters, depending on the grant type being used."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:328
+#: lib/web/controllers/application_controller.ex:326
 #, elixir-autogen, elixir-format
 msgid "Invalid client credentials provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:336
+#: lib/web/controllers/application_controller.ex:334
 #, elixir-autogen, elixir-format
 msgid "Invalid refresh token provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:169
-#: lib/web/controllers/application_controller.ex:400
+#: lib/web/controllers/application_controller.ex:167
+#: lib/web/controllers/application_controller.ex:398
 #, elixir-autogen, elixir-format
 msgid "No application was found with this client_id"
 msgstr ""
@@ -1220,17 +1220,17 @@ msgstr ""
 msgid "Not authorized to access this %{object_type}"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:278
+#: lib/web/controllers/application_controller.ex:276
 #, elixir-autogen, elixir-format
 msgid "Please slow down the rate of your requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:266
+#: lib/web/controllers/application_controller.ex:264
 #, elixir-autogen, elixir-format
 msgid "The authorization request is still pending"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:248
+#: lib/web/controllers/application_controller.ex:246
 #, elixir-autogen, elixir-format
 msgid "The client_id provided or the device_code associated is invalid"
 msgstr ""
@@ -1240,7 +1240,7 @@ msgstr ""
 msgid "The device user code was not provided before approving the application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:303
+#: lib/web/controllers/application_controller.ex:301
 #, elixir-autogen, elixir-format
 msgid "The given device_code has expired"
 msgstr ""
@@ -1250,7 +1250,7 @@ msgstr ""
 msgid "The given redirect_uri is not in the list of allowed redirect URIs"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:157
+#: lib/web/controllers/application_controller.ex:155
 #, elixir-autogen, elixir-format
 msgid "The given scope is not in the list of the app declared scopes"
 msgstr ""
@@ -1267,22 +1267,22 @@ msgstr ""
 msgid "The given user code is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:410
+#: lib/web/controllers/application_controller.ex:408
 #, elixir-autogen, elixir-format
 msgid "The provided client_id does not match the provided code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:413
+#: lib/web/controllers/application_controller.ex:411
 #, elixir-autogen, elixir-format
 msgid "The provided client_secret is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:406
+#: lib/web/controllers/application_controller.ex:404
 #, elixir-autogen, elixir-format
 msgid "The provided code is invalid or expired"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:417
+#: lib/web/controllers/application_controller.ex:415
 #, elixir-autogen, elixir-format
 msgid "The provided scope is invalid or not included in the app declared scopes"
 msgstr ""
@@ -1292,17 +1292,17 @@ msgstr ""
 msgid "The scope parameter is not a space separated list of valid scopes"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:291
+#: lib/web/controllers/application_controller.ex:289
 #, elixir-autogen, elixir-format
 msgid "The user rejected the requested authorization"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:403
+#: lib/web/controllers/application_controller.ex:401
 #, elixir-autogen, elixir-format
 msgid "This redirect URI is not allowed"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:380
+#: lib/web/controllers/application_controller.ex:378
 #, elixir-autogen, elixir-format, fuzzy
 msgid "Token not found"
 msgstr ""
@@ -1312,27 +1312,27 @@ msgstr ""
 msgid "Too many requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:183
+#: lib/web/controllers/application_controller.ex:181
 #, elixir-autogen, elixir-format
 msgid "Unable to produce device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:372
+#: lib/web/controllers/application_controller.ex:370
 #, elixir-autogen, elixir-format
 msgid "Unable to revoke token"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:197
+#: lib/web/controllers/application_controller.ex:195
 #, elixir-autogen, elixir-format
 msgid "You need to pass both client_id and scope as parameters to obtain a device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:135
+#: lib/web/controllers/application_controller.ex:133
 #, elixir-autogen, elixir-format
 msgid "You need to provide a valid redirect_uri to autorize an application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:125
+#: lib/web/controllers/application_controller.ex:123
 #, elixir-autogen, elixir-format
 msgid "You need to specify client_id, redirect_uri, scope and state to autorize an application"
 msgstr ""
@@ -1368,7 +1368,7 @@ msgstr ""
 msgid "This instance is pending follow approval"
 msgstr ""
 
-#: lib/graphql/schema/custom/timezone.ex:23
+#: lib/graphql/schema/custom/timezone.ex:25
 #, elixir-autogen, elixir-format
 msgid "Timezone ID %{timezone} is invalid"
 msgstr ""
diff --git a/priv/gettext/gl/LC_MESSAGES/default.po b/priv/gettext/gl/LC_MESSAGES/default.po
index 4da186222..90af06c4c 100644
--- a/priv/gettext/gl/LC_MESSAGES/default.po
+++ b/priv/gettext/gl/LC_MESSAGES/default.po
@@ -110,7 +110,7 @@ msgstr ""
 "Creaches unha conta en %{host} con este enderezo de email. Só precisas "
 "activalo. Se non foches ti, por favor ignora este email."
 
-#: lib/web/email/participation.ex:114
+#: lib/web/email/participation.ex:115
 #, elixir-autogen, elixir-format
 msgid "Your participation to event %{title} has been approved"
 msgstr "Foi aprobada a túa participación no evento %{title}"
@@ -141,7 +141,7 @@ msgstr ""
 msgid "Warning"
 msgstr "Aviso"
 
-#: lib/web/email/participation.ex:140
+#: lib/web/email/participation.ex:142
 #, elixir-autogen, elixir-format
 msgid "Confirm your participation to event %{title}"
 msgstr "Confirma a túa participación no evento %{title}"
@@ -1156,7 +1156,7 @@ msgstr "Que temos para hoxe?"
 
 #: lib/web/templates/email/event_participation_approved.html.heex:98
 #: lib/web/templates/email/event_participation_approved.text.eex:11
-#: lib/web/templates/email/event_participation_confirmed.html.heex:98
+#: lib/web/templates/email/event_participation_confirmed.html.heex:140
 #: lib/web/templates/email/event_participation_confirmed.text.eex:6
 #, elixir-autogen, elixir-format
 msgid "Would you wish to update or cancel your attendance, simply access the event page through the link above and click on the Attending button."
@@ -1565,7 +1565,7 @@ msgid "This is a demonstration site to test Mobilizon."
 msgstr "Este é un sitio web de exemplo para probar Mobilizon."
 
 #: lib/service/metadata/actor.ex:86
-#: lib/service/metadata/actor.ex:92
+#: lib/service/metadata/actor.ex:93
 #: lib/service/metadata/instance.ex:60
 #: lib/service/metadata/instance.ex:66
 #, elixir-autogen, elixir-format
@@ -2289,11 +2289,30 @@ msgid "Participant registration date"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:113
+#: lib/web/templates/email/event_participation_confirmed.html.heex:122
 #, elixir-autogen, elixir-format
 msgid "Cancel my attendance"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:90
+#: lib/web/templates/email/event_participation_confirmed.html.heex:99
 #, elixir-autogen, elixir-format
 msgid "If you wish to cancel your participation, simply click on the link below."
 msgstr ""
+
+#: lib/web/email/admin.ex:142
+#, elixir-autogen, elixir-format
+msgid "Email configuration test for %{instance}"
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:47
+#: lib/web/templates/email/email_configuration_test.text.eex:3
+#, elixir-autogen, elixir-format
+msgid "If you received this email, the email configuration seems to be correct."
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:18
+#: lib/web/templates/email/email_configuration_test.text.eex:1
+#, elixir-autogen, elixir-format
+msgid "Well done!"
+msgstr ""
diff --git a/priv/gettext/gl/LC_MESSAGES/errors.po b/priv/gettext/gl/LC_MESSAGES/errors.po
index 1425fc960..13b3eba4c 100644
--- a/priv/gettext/gl/LC_MESSAGES/errors.po
+++ b/priv/gettext/gl/LC_MESSAGES/errors.po
@@ -1194,23 +1194,23 @@ msgstr "Erro ó gardar a denuncia"
 msgid "Impossible to create application."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:355
+#: lib/web/controllers/application_controller.ex:353
 #, elixir-autogen, elixir-format
 msgid "Incorrect parameters sent. You need to provide at least the grant_type and client_id parameters, depending on the grant type being used."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:328
+#: lib/web/controllers/application_controller.ex:326
 #, elixir-autogen, elixir-format
 msgid "Invalid client credentials provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:336
+#: lib/web/controllers/application_controller.ex:334
 #, elixir-autogen, elixir-format
 msgid "Invalid refresh token provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:169
-#: lib/web/controllers/application_controller.ex:400
+#: lib/web/controllers/application_controller.ex:167
+#: lib/web/controllers/application_controller.ex:398
 #, elixir-autogen, elixir-format
 msgid "No application was found with this client_id"
 msgstr ""
@@ -1236,17 +1236,17 @@ msgstr ""
 msgid "Not authorized to access this %{object_type}"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:278
+#: lib/web/controllers/application_controller.ex:276
 #, elixir-autogen, elixir-format
 msgid "Please slow down the rate of your requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:266
+#: lib/web/controllers/application_controller.ex:264
 #, elixir-autogen, elixir-format
 msgid "The authorization request is still pending"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:248
+#: lib/web/controllers/application_controller.ex:246
 #, elixir-autogen, elixir-format
 msgid "The client_id provided or the device_code associated is invalid"
 msgstr ""
@@ -1256,7 +1256,7 @@ msgstr ""
 msgid "The device user code was not provided before approving the application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:303
+#: lib/web/controllers/application_controller.ex:301
 #, elixir-autogen, elixir-format
 msgid "The given device_code has expired"
 msgstr ""
@@ -1266,7 +1266,7 @@ msgstr ""
 msgid "The given redirect_uri is not in the list of allowed redirect URIs"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:157
+#: lib/web/controllers/application_controller.ex:155
 #, elixir-autogen, elixir-format
 msgid "The given scope is not in the list of the app declared scopes"
 msgstr ""
@@ -1283,22 +1283,22 @@ msgstr ""
 msgid "The given user code is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:410
+#: lib/web/controllers/application_controller.ex:408
 #, elixir-autogen, elixir-format
 msgid "The provided client_id does not match the provided code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:413
+#: lib/web/controllers/application_controller.ex:411
 #, elixir-autogen, elixir-format
 msgid "The provided client_secret is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:406
+#: lib/web/controllers/application_controller.ex:404
 #, elixir-autogen, elixir-format
 msgid "The provided code is invalid or expired"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:417
+#: lib/web/controllers/application_controller.ex:415
 #, elixir-autogen, elixir-format
 msgid "The provided scope is invalid or not included in the app declared scopes"
 msgstr ""
@@ -1308,17 +1308,17 @@ msgstr ""
 msgid "The scope parameter is not a space separated list of valid scopes"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:291
+#: lib/web/controllers/application_controller.ex:289
 #, elixir-autogen, elixir-format
 msgid "The user rejected the requested authorization"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:403
+#: lib/web/controllers/application_controller.ex:401
 #, elixir-autogen, elixir-format
 msgid "This redirect URI is not allowed"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:380
+#: lib/web/controllers/application_controller.ex:378
 #, elixir-autogen, elixir-format, fuzzy
 msgid "Token not found"
 msgstr "Evento non atopado"
@@ -1328,27 +1328,27 @@ msgstr "Evento non atopado"
 msgid "Too many requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:183
+#: lib/web/controllers/application_controller.ex:181
 #, elixir-autogen, elixir-format
 msgid "Unable to produce device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:372
+#: lib/web/controllers/application_controller.ex:370
 #, elixir-autogen, elixir-format
 msgid "Unable to revoke token"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:197
+#: lib/web/controllers/application_controller.ex:195
 #, elixir-autogen, elixir-format
 msgid "You need to pass both client_id and scope as parameters to obtain a device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:135
+#: lib/web/controllers/application_controller.ex:133
 #, elixir-autogen, elixir-format
 msgid "You need to provide a valid redirect_uri to autorize an application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:125
+#: lib/web/controllers/application_controller.ex:123
 #, elixir-autogen, elixir-format
 msgid "You need to specify client_id, redirect_uri, scope and state to autorize an application"
 msgstr ""
@@ -1384,7 +1384,7 @@ msgstr ""
 msgid "This instance is pending follow approval"
 msgstr ""
 
-#: lib/graphql/schema/custom/timezone.ex:23
+#: lib/graphql/schema/custom/timezone.ex:25
 #, elixir-autogen, elixir-format
 msgid "Timezone ID %{timezone} is invalid"
 msgstr ""
diff --git a/priv/gettext/he/LC_MESSAGES/default.po b/priv/gettext/he/LC_MESSAGES/default.po
index aab318fa0..909075445 100644
--- a/priv/gettext/he/LC_MESSAGES/default.po
+++ b/priv/gettext/he/LC_MESSAGES/default.po
@@ -100,7 +100,7 @@ msgstr ""
 msgid "You created an account on %{host} with this email address. You are one click away from activating it. If this wasn't you, please ignore this email."
 msgstr ""
 
-#: lib/web/email/participation.ex:114
+#: lib/web/email/participation.ex:115
 #, elixir-autogen, elixir-format
 msgid "Your participation to event %{title} has been approved"
 msgstr ""
@@ -130,7 +130,7 @@ msgstr ""
 msgid "Warning"
 msgstr ""
 
-#: lib/web/email/participation.ex:140
+#: lib/web/email/participation.ex:142
 #, elixir-autogen, elixir-format
 msgid "Confirm your participation to event %{title}"
 msgstr ""
@@ -982,7 +982,7 @@ msgstr ""
 
 #: lib/web/templates/email/event_participation_approved.html.heex:98
 #: lib/web/templates/email/event_participation_approved.text.eex:11
-#: lib/web/templates/email/event_participation_confirmed.html.heex:98
+#: lib/web/templates/email/event_participation_confirmed.html.heex:140
 #: lib/web/templates/email/event_participation_confirmed.text.eex:6
 #, elixir-autogen, elixir-format
 msgid "Would you wish to update or cancel your attendance, simply access the event page through the link above and click on the Attending button."
@@ -1296,7 +1296,7 @@ msgid "This is a demonstration site to test Mobilizon."
 msgstr ""
 
 #: lib/service/metadata/actor.ex:86
-#: lib/service/metadata/actor.ex:92
+#: lib/service/metadata/actor.ex:93
 #: lib/service/metadata/instance.ex:60
 #: lib/service/metadata/instance.ex:66
 #, elixir-autogen, elixir-format
@@ -2004,11 +2004,30 @@ msgid "Participant registration date"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:113
+#: lib/web/templates/email/event_participation_confirmed.html.heex:122
 #, elixir-autogen, elixir-format
 msgid "Cancel my attendance"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:90
+#: lib/web/templates/email/event_participation_confirmed.html.heex:99
 #, elixir-autogen, elixir-format
 msgid "If you wish to cancel your participation, simply click on the link below."
 msgstr ""
+
+#: lib/web/email/admin.ex:142
+#, elixir-autogen, elixir-format
+msgid "Email configuration test for %{instance}"
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:47
+#: lib/web/templates/email/email_configuration_test.text.eex:3
+#, elixir-autogen, elixir-format
+msgid "If you received this email, the email configuration seems to be correct."
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:18
+#: lib/web/templates/email/email_configuration_test.text.eex:1
+#, elixir-autogen, elixir-format
+msgid "Well done!"
+msgstr ""
diff --git a/priv/gettext/he/LC_MESSAGES/errors.po b/priv/gettext/he/LC_MESSAGES/errors.po
index b9a05eb1e..56913831b 100644
--- a/priv/gettext/he/LC_MESSAGES/errors.po
+++ b/priv/gettext/he/LC_MESSAGES/errors.po
@@ -1179,23 +1179,23 @@ msgstr ""
 msgid "Impossible to create application."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:355
+#: lib/web/controllers/application_controller.ex:353
 #, elixir-autogen, elixir-format
 msgid "Incorrect parameters sent. You need to provide at least the grant_type and client_id parameters, depending on the grant type being used."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:328
+#: lib/web/controllers/application_controller.ex:326
 #, elixir-autogen, elixir-format
 msgid "Invalid client credentials provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:336
+#: lib/web/controllers/application_controller.ex:334
 #, elixir-autogen, elixir-format
 msgid "Invalid refresh token provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:169
-#: lib/web/controllers/application_controller.ex:400
+#: lib/web/controllers/application_controller.ex:167
+#: lib/web/controllers/application_controller.ex:398
 #, elixir-autogen, elixir-format
 msgid "No application was found with this client_id"
 msgstr ""
@@ -1221,17 +1221,17 @@ msgstr ""
 msgid "Not authorized to access this %{object_type}"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:278
+#: lib/web/controllers/application_controller.ex:276
 #, elixir-autogen, elixir-format
 msgid "Please slow down the rate of your requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:266
+#: lib/web/controllers/application_controller.ex:264
 #, elixir-autogen, elixir-format
 msgid "The authorization request is still pending"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:248
+#: lib/web/controllers/application_controller.ex:246
 #, elixir-autogen, elixir-format
 msgid "The client_id provided or the device_code associated is invalid"
 msgstr ""
@@ -1241,7 +1241,7 @@ msgstr ""
 msgid "The device user code was not provided before approving the application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:303
+#: lib/web/controllers/application_controller.ex:301
 #, elixir-autogen, elixir-format
 msgid "The given device_code has expired"
 msgstr ""
@@ -1251,7 +1251,7 @@ msgstr ""
 msgid "The given redirect_uri is not in the list of allowed redirect URIs"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:157
+#: lib/web/controllers/application_controller.ex:155
 #, elixir-autogen, elixir-format
 msgid "The given scope is not in the list of the app declared scopes"
 msgstr ""
@@ -1268,22 +1268,22 @@ msgstr ""
 msgid "The given user code is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:410
+#: lib/web/controllers/application_controller.ex:408
 #, elixir-autogen, elixir-format
 msgid "The provided client_id does not match the provided code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:413
+#: lib/web/controllers/application_controller.ex:411
 #, elixir-autogen, elixir-format
 msgid "The provided client_secret is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:406
+#: lib/web/controllers/application_controller.ex:404
 #, elixir-autogen, elixir-format
 msgid "The provided code is invalid or expired"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:417
+#: lib/web/controllers/application_controller.ex:415
 #, elixir-autogen, elixir-format
 msgid "The provided scope is invalid or not included in the app declared scopes"
 msgstr ""
@@ -1293,17 +1293,17 @@ msgstr ""
 msgid "The scope parameter is not a space separated list of valid scopes"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:291
+#: lib/web/controllers/application_controller.ex:289
 #, elixir-autogen, elixir-format
 msgid "The user rejected the requested authorization"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:403
+#: lib/web/controllers/application_controller.ex:401
 #, elixir-autogen, elixir-format
 msgid "This redirect URI is not allowed"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:380
+#: lib/web/controllers/application_controller.ex:378
 #, elixir-autogen, elixir-format, fuzzy
 msgid "Token not found"
 msgstr ""
@@ -1313,27 +1313,27 @@ msgstr ""
 msgid "Too many requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:183
+#: lib/web/controllers/application_controller.ex:181
 #, elixir-autogen, elixir-format
 msgid "Unable to produce device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:372
+#: lib/web/controllers/application_controller.ex:370
 #, elixir-autogen, elixir-format
 msgid "Unable to revoke token"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:197
+#: lib/web/controllers/application_controller.ex:195
 #, elixir-autogen, elixir-format
 msgid "You need to pass both client_id and scope as parameters to obtain a device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:135
+#: lib/web/controllers/application_controller.ex:133
 #, elixir-autogen, elixir-format
 msgid "You need to provide a valid redirect_uri to autorize an application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:125
+#: lib/web/controllers/application_controller.ex:123
 #, elixir-autogen, elixir-format
 msgid "You need to specify client_id, redirect_uri, scope and state to autorize an application"
 msgstr ""
@@ -1369,7 +1369,7 @@ msgstr ""
 msgid "This instance is pending follow approval"
 msgstr ""
 
-#: lib/graphql/schema/custom/timezone.ex:23
+#: lib/graphql/schema/custom/timezone.ex:25
 #, elixir-autogen, elixir-format
 msgid "Timezone ID %{timezone} is invalid"
 msgstr ""
diff --git a/priv/gettext/hr/LC_MESSAGES/default.po b/priv/gettext/hr/LC_MESSAGES/default.po
index 28845278c..dee565858 100644
--- a/priv/gettext/hr/LC_MESSAGES/default.po
+++ b/priv/gettext/hr/LC_MESSAGES/default.po
@@ -111,7 +111,7 @@ msgstr ""
 "Stvorio/la si račun na %{host} s ovom e-mail adresom. Od aktivacije te "
 "dijeli jedan klik. Ako to nisi bio/la ti, zanemari ovu e-mail poruku."
 
-#: lib/web/email/participation.ex:114
+#: lib/web/email/participation.ex:115
 #, elixir-autogen, elixir-format
 msgid "Your participation to event %{title} has been approved"
 msgstr "Tvoje sudjelovanje događaju %{title} je odobreno"
@@ -141,7 +141,7 @@ msgstr "Zatražio/la si novu lozinku za tvoj račun na %{instance}."
 msgid "Warning"
 msgstr "Upozorenje"
 
-#: lib/web/email/participation.ex:140
+#: lib/web/email/participation.ex:142
 #, elixir-autogen, elixir-format
 msgid "Confirm your participation to event %{title}"
 msgstr "Potvrdi sudjeljovnje događaju %{title}"
@@ -1039,7 +1039,7 @@ msgstr "Što je danas na redu?"
 
 #: lib/web/templates/email/event_participation_approved.html.heex:98
 #: lib/web/templates/email/event_participation_approved.text.eex:11
-#: lib/web/templates/email/event_participation_confirmed.html.heex:98
+#: lib/web/templates/email/event_participation_confirmed.html.heex:140
 #: lib/web/templates/email/event_participation_confirmed.text.eex:6
 #, elixir-autogen, elixir-format
 msgid "Would you wish to update or cancel your attendance, simply access the event page through the link above and click on the Attending button."
@@ -1385,7 +1385,7 @@ msgid "This is a demonstration site to test Mobilizon."
 msgstr "Ovo je demonstracijska stranica za isprobavanje Mobilizona."
 
 #: lib/service/metadata/actor.ex:86
-#: lib/service/metadata/actor.ex:92
+#: lib/service/metadata/actor.ex:93
 #: lib/service/metadata/instance.ex:60
 #: lib/service/metadata/instance.ex:66
 #, elixir-autogen, elixir-format
@@ -2135,11 +2135,30 @@ msgid "Participant registration date"
 msgstr "Stanje sudionika"
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:113
+#: lib/web/templates/email/event_participation_confirmed.html.heex:122
 #, elixir-autogen, elixir-format
 msgid "Cancel my attendance"
 msgstr "Otkaži moje prisustvovanje"
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:90
+#: lib/web/templates/email/event_participation_confirmed.html.heex:99
 #, elixir-autogen, elixir-format
 msgid "If you wish to cancel your participation, simply click on the link below."
 msgstr ""
+
+#: lib/web/email/admin.ex:142
+#, elixir-autogen, elixir-format
+msgid "Email configuration test for %{instance}"
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:47
+#: lib/web/templates/email/email_configuration_test.text.eex:3
+#, elixir-autogen, elixir-format
+msgid "If you received this email, the email configuration seems to be correct."
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:18
+#: lib/web/templates/email/email_configuration_test.text.eex:1
+#, elixir-autogen, elixir-format
+msgid "Well done!"
+msgstr ""
diff --git a/priv/gettext/hr/LC_MESSAGES/errors.po b/priv/gettext/hr/LC_MESSAGES/errors.po
index 1b3a3eab1..ff3cb95f6 100644
--- a/priv/gettext/hr/LC_MESSAGES/errors.po
+++ b/priv/gettext/hr/LC_MESSAGES/errors.po
@@ -1209,23 +1209,23 @@ msgstr "Greška tijekom spremanja izvještaja"
 msgid "Impossible to create application."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:355
+#: lib/web/controllers/application_controller.ex:353
 #, elixir-autogen, elixir-format
 msgid "Incorrect parameters sent. You need to provide at least the grant_type and client_id parameters, depending on the grant type being used."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:328
+#: lib/web/controllers/application_controller.ex:326
 #, elixir-autogen, elixir-format
 msgid "Invalid client credentials provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:336
+#: lib/web/controllers/application_controller.ex:334
 #, elixir-autogen, elixir-format
 msgid "Invalid refresh token provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:169
-#: lib/web/controllers/application_controller.ex:400
+#: lib/web/controllers/application_controller.ex:167
+#: lib/web/controllers/application_controller.ex:398
 #, elixir-autogen, elixir-format
 msgid "No application was found with this client_id"
 msgstr ""
@@ -1251,17 +1251,17 @@ msgstr ""
 msgid "Not authorized to access this %{object_type}"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:278
+#: lib/web/controllers/application_controller.ex:276
 #, elixir-autogen, elixir-format
 msgid "Please slow down the rate of your requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:266
+#: lib/web/controllers/application_controller.ex:264
 #, elixir-autogen, elixir-format
 msgid "The authorization request is still pending"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:248
+#: lib/web/controllers/application_controller.ex:246
 #, elixir-autogen, elixir-format
 msgid "The client_id provided or the device_code associated is invalid"
 msgstr ""
@@ -1271,7 +1271,7 @@ msgstr ""
 msgid "The device user code was not provided before approving the application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:303
+#: lib/web/controllers/application_controller.ex:301
 #, elixir-autogen, elixir-format
 msgid "The given device_code has expired"
 msgstr ""
@@ -1281,7 +1281,7 @@ msgstr ""
 msgid "The given redirect_uri is not in the list of allowed redirect URIs"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:157
+#: lib/web/controllers/application_controller.ex:155
 #, elixir-autogen, elixir-format
 msgid "The given scope is not in the list of the app declared scopes"
 msgstr ""
@@ -1298,22 +1298,22 @@ msgstr ""
 msgid "The given user code is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:410
+#: lib/web/controllers/application_controller.ex:408
 #, elixir-autogen, elixir-format
 msgid "The provided client_id does not match the provided code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:413
+#: lib/web/controllers/application_controller.ex:411
 #, elixir-autogen, elixir-format
 msgid "The provided client_secret is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:406
+#: lib/web/controllers/application_controller.ex:404
 #, elixir-autogen, elixir-format
 msgid "The provided code is invalid or expired"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:417
+#: lib/web/controllers/application_controller.ex:415
 #, elixir-autogen, elixir-format
 msgid "The provided scope is invalid or not included in the app declared scopes"
 msgstr ""
@@ -1323,17 +1323,17 @@ msgstr ""
 msgid "The scope parameter is not a space separated list of valid scopes"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:291
+#: lib/web/controllers/application_controller.ex:289
 #, elixir-autogen, elixir-format
 msgid "The user rejected the requested authorization"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:403
+#: lib/web/controllers/application_controller.ex:401
 #, elixir-autogen, elixir-format
 msgid "This redirect URI is not allowed"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:380
+#: lib/web/controllers/application_controller.ex:378
 #, elixir-autogen, elixir-format, fuzzy
 msgid "Token not found"
 msgstr ""
@@ -1343,27 +1343,27 @@ msgstr ""
 msgid "Too many requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:183
+#: lib/web/controllers/application_controller.ex:181
 #, elixir-autogen, elixir-format
 msgid "Unable to produce device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:372
+#: lib/web/controllers/application_controller.ex:370
 #, elixir-autogen, elixir-format
 msgid "Unable to revoke token"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:197
+#: lib/web/controllers/application_controller.ex:195
 #, elixir-autogen, elixir-format
 msgid "You need to pass both client_id and scope as parameters to obtain a device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:135
+#: lib/web/controllers/application_controller.ex:133
 #, elixir-autogen, elixir-format
 msgid "You need to provide a valid redirect_uri to autorize an application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:125
+#: lib/web/controllers/application_controller.ex:123
 #, elixir-autogen, elixir-format
 msgid "You need to specify client_id, redirect_uri, scope and state to autorize an application"
 msgstr ""
@@ -1399,7 +1399,7 @@ msgstr ""
 msgid "This instance is pending follow approval"
 msgstr ""
 
-#: lib/graphql/schema/custom/timezone.ex:23
+#: lib/graphql/schema/custom/timezone.ex:25
 #, elixir-autogen, elixir-format
 msgid "Timezone ID %{timezone} is invalid"
 msgstr ""
diff --git a/priv/gettext/hu/LC_MESSAGES/default.po b/priv/gettext/hu/LC_MESSAGES/default.po
index 3e775ad47..12995f1cf 100644
--- a/priv/gettext/hu/LC_MESSAGES/default.po
+++ b/priv/gettext/hu/LC_MESSAGES/default.po
@@ -118,7 +118,7 @@ msgstr ""
 "kattintásnyira van az aktiválástól. Ha ez nem Ön volt, akkor hagyja "
 "figyelmen kívül ezt a levelet."
 
-#: lib/web/email/participation.ex:114
+#: lib/web/email/participation.ex:115
 #, elixir-autogen, elixir-format
 msgid "Your participation to event %{title} has been approved"
 msgstr "A(z) %{title} eseményen való részvételét jóváhagyták"
@@ -148,7 +148,7 @@ msgstr "Új jelszót kért a(z) %{instance} példányon lévő fiókjához."
 msgid "Warning"
 msgstr "Figyelmeztetés"
 
-#: lib/web/email/participation.ex:140
+#: lib/web/email/participation.ex:142
 #, elixir-autogen, elixir-format
 msgid "Confirm your participation to event %{title}"
 msgstr "Erősítse meg a(z) %{title} eseményen való részvételét"
@@ -1066,7 +1066,7 @@ msgstr "Mi lesz ma?"
 
 #: lib/web/templates/email/event_participation_approved.html.heex:98
 #: lib/web/templates/email/event_participation_approved.text.eex:11
-#: lib/web/templates/email/event_participation_confirmed.html.heex:98
+#: lib/web/templates/email/event_participation_confirmed.html.heex:140
 #: lib/web/templates/email/event_participation_confirmed.text.eex:6
 #, elixir-autogen, elixir-format
 msgid "Would you wish to update or cancel your attendance, simply access the event page through the link above and click on the Attending button."
@@ -1392,7 +1392,7 @@ msgid "This is a demonstration site to test Mobilizon."
 msgstr "Ez egy bemutató oldal a Mobilizon kipróbálásához."
 
 #: lib/service/metadata/actor.ex:86
-#: lib/service/metadata/actor.ex:92
+#: lib/service/metadata/actor.ex:93
 #: lib/service/metadata/instance.ex:60
 #: lib/service/metadata/instance.ex:66
 #, elixir-autogen, elixir-format
@@ -2149,11 +2149,30 @@ msgid "Participant registration date"
 msgstr "Résztvevő állapota"
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:113
+#: lib/web/templates/email/event_participation_confirmed.html.heex:122
 #, elixir-autogen, elixir-format
 msgid "Cancel my attendance"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:90
+#: lib/web/templates/email/event_participation_confirmed.html.heex:99
 #, elixir-autogen, elixir-format
 msgid "If you wish to cancel your participation, simply click on the link below."
 msgstr ""
+
+#: lib/web/email/admin.ex:142
+#, elixir-autogen, elixir-format
+msgid "Email configuration test for %{instance}"
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:47
+#: lib/web/templates/email/email_configuration_test.text.eex:3
+#, elixir-autogen, elixir-format
+msgid "If you received this email, the email configuration seems to be correct."
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:18
+#: lib/web/templates/email/email_configuration_test.text.eex:1
+#, elixir-autogen, elixir-format
+msgid "Well done!"
+msgstr ""
diff --git a/priv/gettext/hu/LC_MESSAGES/errors.po b/priv/gettext/hu/LC_MESSAGES/errors.po
index 154715575..e8e2d72a4 100644
--- a/priv/gettext/hu/LC_MESSAGES/errors.po
+++ b/priv/gettext/hu/LC_MESSAGES/errors.po
@@ -1227,23 +1227,23 @@ msgstr "Hiba a jelentés mentésekor"
 msgid "Impossible to create application."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:355
+#: lib/web/controllers/application_controller.ex:353
 #, elixir-autogen, elixir-format
 msgid "Incorrect parameters sent. You need to provide at least the grant_type and client_id parameters, depending on the grant type being used."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:328
+#: lib/web/controllers/application_controller.ex:326
 #, elixir-autogen, elixir-format
 msgid "Invalid client credentials provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:336
+#: lib/web/controllers/application_controller.ex:334
 #, elixir-autogen, elixir-format
 msgid "Invalid refresh token provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:169
-#: lib/web/controllers/application_controller.ex:400
+#: lib/web/controllers/application_controller.ex:167
+#: lib/web/controllers/application_controller.ex:398
 #, elixir-autogen, elixir-format
 msgid "No application was found with this client_id"
 msgstr ""
@@ -1269,17 +1269,17 @@ msgstr ""
 msgid "Not authorized to access this %{object_type}"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:278
+#: lib/web/controllers/application_controller.ex:276
 #, elixir-autogen, elixir-format
 msgid "Please slow down the rate of your requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:266
+#: lib/web/controllers/application_controller.ex:264
 #, elixir-autogen, elixir-format
 msgid "The authorization request is still pending"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:248
+#: lib/web/controllers/application_controller.ex:246
 #, elixir-autogen, elixir-format
 msgid "The client_id provided or the device_code associated is invalid"
 msgstr ""
@@ -1289,7 +1289,7 @@ msgstr ""
 msgid "The device user code was not provided before approving the application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:303
+#: lib/web/controllers/application_controller.ex:301
 #, elixir-autogen, elixir-format
 msgid "The given device_code has expired"
 msgstr ""
@@ -1299,7 +1299,7 @@ msgstr ""
 msgid "The given redirect_uri is not in the list of allowed redirect URIs"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:157
+#: lib/web/controllers/application_controller.ex:155
 #, elixir-autogen, elixir-format
 msgid "The given scope is not in the list of the app declared scopes"
 msgstr ""
@@ -1316,22 +1316,22 @@ msgstr ""
 msgid "The given user code is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:410
+#: lib/web/controllers/application_controller.ex:408
 #, elixir-autogen, elixir-format
 msgid "The provided client_id does not match the provided code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:413
+#: lib/web/controllers/application_controller.ex:411
 #, elixir-autogen, elixir-format
 msgid "The provided client_secret is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:406
+#: lib/web/controllers/application_controller.ex:404
 #, elixir-autogen, elixir-format
 msgid "The provided code is invalid or expired"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:417
+#: lib/web/controllers/application_controller.ex:415
 #, elixir-autogen, elixir-format
 msgid "The provided scope is invalid or not included in the app declared scopes"
 msgstr ""
@@ -1341,17 +1341,17 @@ msgstr ""
 msgid "The scope parameter is not a space separated list of valid scopes"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:291
+#: lib/web/controllers/application_controller.ex:289
 #, elixir-autogen, elixir-format
 msgid "The user rejected the requested authorization"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:403
+#: lib/web/controllers/application_controller.ex:401
 #, elixir-autogen, elixir-format
 msgid "This redirect URI is not allowed"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:380
+#: lib/web/controllers/application_controller.ex:378
 #, elixir-autogen, elixir-format, fuzzy
 msgid "Token not found"
 msgstr "A hozzászólás nem található"
@@ -1361,27 +1361,27 @@ msgstr "A hozzászólás nem található"
 msgid "Too many requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:183
+#: lib/web/controllers/application_controller.ex:181
 #, elixir-autogen, elixir-format
 msgid "Unable to produce device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:372
+#: lib/web/controllers/application_controller.ex:370
 #, elixir-autogen, elixir-format
 msgid "Unable to revoke token"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:197
+#: lib/web/controllers/application_controller.ex:195
 #, elixir-autogen, elixir-format
 msgid "You need to pass both client_id and scope as parameters to obtain a device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:135
+#: lib/web/controllers/application_controller.ex:133
 #, elixir-autogen, elixir-format
 msgid "You need to provide a valid redirect_uri to autorize an application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:125
+#: lib/web/controllers/application_controller.ex:123
 #, elixir-autogen, elixir-format
 msgid "You need to specify client_id, redirect_uri, scope and state to autorize an application"
 msgstr ""
@@ -1417,7 +1417,7 @@ msgstr ""
 msgid "This instance is pending follow approval"
 msgstr ""
 
-#: lib/graphql/schema/custom/timezone.ex:23
+#: lib/graphql/schema/custom/timezone.ex:25
 #, elixir-autogen, elixir-format
 msgid "Timezone ID %{timezone} is invalid"
 msgstr ""
diff --git a/priv/gettext/id/LC_MESSAGES/default.po b/priv/gettext/id/LC_MESSAGES/default.po
index cb4287d65..eb48df415 100644
--- a/priv/gettext/id/LC_MESSAGES/default.po
+++ b/priv/gettext/id/LC_MESSAGES/default.po
@@ -105,7 +105,7 @@ msgstr ""
 msgid "You created an account on %{host} with this email address. You are one click away from activating it. If this wasn't you, please ignore this email."
 msgstr ""
 
-#: lib/web/email/participation.ex:114
+#: lib/web/email/participation.ex:115
 #, elixir-autogen, elixir-format
 msgid "Your participation to event %{title} has been approved"
 msgstr "Keikutsertaan Anda pada acara %{title} telah diterima"
@@ -135,7 +135,7 @@ msgstr ""
 msgid "Warning"
 msgstr "Peringatan"
 
-#: lib/web/email/participation.ex:140
+#: lib/web/email/participation.ex:142
 #, elixir-autogen, elixir-format
 msgid "Confirm your participation to event %{title}"
 msgstr "Konfirmasi keikutsertaan Anda pada acara %{title}"
@@ -1003,7 +1003,7 @@ msgstr "Ada apa hari ini?"
 
 #: lib/web/templates/email/event_participation_approved.html.heex:98
 #: lib/web/templates/email/event_participation_approved.text.eex:11
-#: lib/web/templates/email/event_participation_confirmed.html.heex:98
+#: lib/web/templates/email/event_participation_confirmed.html.heex:140
 #: lib/web/templates/email/event_participation_confirmed.text.eex:6
 #, elixir-autogen, elixir-format
 msgid "Would you wish to update or cancel your attendance, simply access the event page through the link above and click on the Attending button."
@@ -1320,7 +1320,7 @@ msgid "This is a demonstration site to test Mobilizon."
 msgstr ""
 
 #: lib/service/metadata/actor.ex:86
-#: lib/service/metadata/actor.ex:92
+#: lib/service/metadata/actor.ex:93
 #: lib/service/metadata/instance.ex:60
 #: lib/service/metadata/instance.ex:66
 #, elixir-autogen, elixir-format
@@ -2025,11 +2025,30 @@ msgid "Participant registration date"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:113
+#: lib/web/templates/email/event_participation_confirmed.html.heex:122
 #, elixir-autogen, elixir-format
 msgid "Cancel my attendance"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:90
+#: lib/web/templates/email/event_participation_confirmed.html.heex:99
 #, elixir-autogen, elixir-format
 msgid "If you wish to cancel your participation, simply click on the link below."
 msgstr ""
+
+#: lib/web/email/admin.ex:142
+#, elixir-autogen, elixir-format
+msgid "Email configuration test for %{instance}"
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:47
+#: lib/web/templates/email/email_configuration_test.text.eex:3
+#, elixir-autogen, elixir-format
+msgid "If you received this email, the email configuration seems to be correct."
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:18
+#: lib/web/templates/email/email_configuration_test.text.eex:1
+#, elixir-autogen, elixir-format
+msgid "Well done!"
+msgstr ""
diff --git a/priv/gettext/id/LC_MESSAGES/errors.po b/priv/gettext/id/LC_MESSAGES/errors.po
index 14c98e27b..0256bd284 100644
--- a/priv/gettext/id/LC_MESSAGES/errors.po
+++ b/priv/gettext/id/LC_MESSAGES/errors.po
@@ -1166,23 +1166,23 @@ msgstr ""
 msgid "Impossible to create application."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:355
+#: lib/web/controllers/application_controller.ex:353
 #, elixir-autogen, elixir-format
 msgid "Incorrect parameters sent. You need to provide at least the grant_type and client_id parameters, depending on the grant type being used."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:328
+#: lib/web/controllers/application_controller.ex:326
 #, elixir-autogen, elixir-format
 msgid "Invalid client credentials provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:336
+#: lib/web/controllers/application_controller.ex:334
 #, elixir-autogen, elixir-format
 msgid "Invalid refresh token provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:169
-#: lib/web/controllers/application_controller.ex:400
+#: lib/web/controllers/application_controller.ex:167
+#: lib/web/controllers/application_controller.ex:398
 #, elixir-autogen, elixir-format
 msgid "No application was found with this client_id"
 msgstr ""
@@ -1208,17 +1208,17 @@ msgstr ""
 msgid "Not authorized to access this %{object_type}"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:278
+#: lib/web/controllers/application_controller.ex:276
 #, elixir-autogen, elixir-format
 msgid "Please slow down the rate of your requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:266
+#: lib/web/controllers/application_controller.ex:264
 #, elixir-autogen, elixir-format
 msgid "The authorization request is still pending"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:248
+#: lib/web/controllers/application_controller.ex:246
 #, elixir-autogen, elixir-format
 msgid "The client_id provided or the device_code associated is invalid"
 msgstr ""
@@ -1228,7 +1228,7 @@ msgstr ""
 msgid "The device user code was not provided before approving the application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:303
+#: lib/web/controllers/application_controller.ex:301
 #, elixir-autogen, elixir-format
 msgid "The given device_code has expired"
 msgstr ""
@@ -1238,7 +1238,7 @@ msgstr ""
 msgid "The given redirect_uri is not in the list of allowed redirect URIs"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:157
+#: lib/web/controllers/application_controller.ex:155
 #, elixir-autogen, elixir-format
 msgid "The given scope is not in the list of the app declared scopes"
 msgstr ""
@@ -1255,22 +1255,22 @@ msgstr ""
 msgid "The given user code is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:410
+#: lib/web/controllers/application_controller.ex:408
 #, elixir-autogen, elixir-format
 msgid "The provided client_id does not match the provided code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:413
+#: lib/web/controllers/application_controller.ex:411
 #, elixir-autogen, elixir-format
 msgid "The provided client_secret is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:406
+#: lib/web/controllers/application_controller.ex:404
 #, elixir-autogen, elixir-format
 msgid "The provided code is invalid or expired"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:417
+#: lib/web/controllers/application_controller.ex:415
 #, elixir-autogen, elixir-format
 msgid "The provided scope is invalid or not included in the app declared scopes"
 msgstr ""
@@ -1280,17 +1280,17 @@ msgstr ""
 msgid "The scope parameter is not a space separated list of valid scopes"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:291
+#: lib/web/controllers/application_controller.ex:289
 #, elixir-autogen, elixir-format
 msgid "The user rejected the requested authorization"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:403
+#: lib/web/controllers/application_controller.ex:401
 #, elixir-autogen, elixir-format
 msgid "This redirect URI is not allowed"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:380
+#: lib/web/controllers/application_controller.ex:378
 #, elixir-autogen, elixir-format, fuzzy
 msgid "Token not found"
 msgstr ""
@@ -1300,27 +1300,27 @@ msgstr ""
 msgid "Too many requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:183
+#: lib/web/controllers/application_controller.ex:181
 #, elixir-autogen, elixir-format
 msgid "Unable to produce device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:372
+#: lib/web/controllers/application_controller.ex:370
 #, elixir-autogen, elixir-format
 msgid "Unable to revoke token"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:197
+#: lib/web/controllers/application_controller.ex:195
 #, elixir-autogen, elixir-format
 msgid "You need to pass both client_id and scope as parameters to obtain a device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:135
+#: lib/web/controllers/application_controller.ex:133
 #, elixir-autogen, elixir-format
 msgid "You need to provide a valid redirect_uri to autorize an application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:125
+#: lib/web/controllers/application_controller.ex:123
 #, elixir-autogen, elixir-format
 msgid "You need to specify client_id, redirect_uri, scope and state to autorize an application"
 msgstr ""
@@ -1356,7 +1356,7 @@ msgstr ""
 msgid "This instance is pending follow approval"
 msgstr ""
 
-#: lib/graphql/schema/custom/timezone.ex:23
+#: lib/graphql/schema/custom/timezone.ex:25
 #, elixir-autogen, elixir-format
 msgid "Timezone ID %{timezone} is invalid"
 msgstr ""
diff --git a/priv/gettext/it/LC_MESSAGES/default.po b/priv/gettext/it/LC_MESSAGES/default.po
index 8931691fd..5704efc91 100644
--- a/priv/gettext/it/LC_MESSAGES/default.po
+++ b/priv/gettext/it/LC_MESSAGES/default.po
@@ -110,7 +110,7 @@ msgstr ""
 "Hai creato un account su %{host} con questa email. Sei ad un click "
 "dall'attivarlo. Se non sei tu ignora questo messaggio."
 
-#: lib/web/email/participation.ex:114
+#: lib/web/email/participation.ex:115
 #, elixir-autogen, elixir-format
 msgid "Your participation to event %{title} has been approved"
 msgstr "La tua partecipazione all'evento %{title} è stata approvata"
@@ -140,7 +140,7 @@ msgstr "Hai richiesto una nuova password per il tuo account su %{instance}."
 msgid "Warning"
 msgstr "Avviso"
 
-#: lib/web/email/participation.ex:140
+#: lib/web/email/participation.ex:142
 #, elixir-autogen, elixir-format
 msgid "Confirm your participation to event %{title}"
 msgstr "Conferma la tua partecipazione all'evento %{title}"
@@ -1187,7 +1187,7 @@ msgstr "Cosa succede oggi?"
 
 #: lib/web/templates/email/event_participation_approved.html.heex:98
 #: lib/web/templates/email/event_participation_approved.text.eex:11
-#: lib/web/templates/email/event_participation_confirmed.html.heex:98
+#: lib/web/templates/email/event_participation_confirmed.html.heex:140
 #: lib/web/templates/email/event_participation_confirmed.text.eex:6
 #, elixir-autogen, elixir-format
 msgid "Would you wish to update or cancel your attendance, simply access the event page through the link above and click on the Attending button."
@@ -1612,7 +1612,7 @@ msgid "This is a demonstration site to test Mobilizon."
 msgstr "Questo è un sito di prova per testare Mobilizon."
 
 #: lib/service/metadata/actor.ex:86
-#: lib/service/metadata/actor.ex:92
+#: lib/service/metadata/actor.ex:93
 #: lib/service/metadata/instance.ex:60
 #: lib/service/metadata/instance.ex:66
 #, elixir-autogen, elixir-format
@@ -2372,11 +2372,30 @@ msgid "Participant registration date"
 msgstr "Stato partecipante"
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:113
+#: lib/web/templates/email/event_participation_confirmed.html.heex:122
 #, elixir-autogen, elixir-format
 msgid "Cancel my attendance"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:90
+#: lib/web/templates/email/event_participation_confirmed.html.heex:99
 #, elixir-autogen, elixir-format
 msgid "If you wish to cancel your participation, simply click on the link below."
 msgstr ""
+
+#: lib/web/email/admin.ex:142
+#, elixir-autogen, elixir-format
+msgid "Email configuration test for %{instance}"
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:47
+#: lib/web/templates/email/email_configuration_test.text.eex:3
+#, elixir-autogen, elixir-format
+msgid "If you received this email, the email configuration seems to be correct."
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:18
+#: lib/web/templates/email/email_configuration_test.text.eex:1
+#, elixir-autogen, elixir-format
+msgid "Well done!"
+msgstr ""
diff --git a/priv/gettext/it/LC_MESSAGES/errors.po b/priv/gettext/it/LC_MESSAGES/errors.po
index a85d52b00..178e804b4 100644
--- a/priv/gettext/it/LC_MESSAGES/errors.po
+++ b/priv/gettext/it/LC_MESSAGES/errors.po
@@ -1202,23 +1202,23 @@ msgstr "Errore nel salvare la segnalazione"
 msgid "Impossible to create application."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:355
+#: lib/web/controllers/application_controller.ex:353
 #, elixir-autogen, elixir-format
 msgid "Incorrect parameters sent. You need to provide at least the grant_type and client_id parameters, depending on the grant type being used."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:328
+#: lib/web/controllers/application_controller.ex:326
 #, elixir-autogen, elixir-format
 msgid "Invalid client credentials provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:336
+#: lib/web/controllers/application_controller.ex:334
 #, elixir-autogen, elixir-format
 msgid "Invalid refresh token provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:169
-#: lib/web/controllers/application_controller.ex:400
+#: lib/web/controllers/application_controller.ex:167
+#: lib/web/controllers/application_controller.ex:398
 #, elixir-autogen, elixir-format
 msgid "No application was found with this client_id"
 msgstr ""
@@ -1244,17 +1244,17 @@ msgstr ""
 msgid "Not authorized to access this %{object_type}"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:278
+#: lib/web/controllers/application_controller.ex:276
 #, elixir-autogen, elixir-format
 msgid "Please slow down the rate of your requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:266
+#: lib/web/controllers/application_controller.ex:264
 #, elixir-autogen, elixir-format
 msgid "The authorization request is still pending"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:248
+#: lib/web/controllers/application_controller.ex:246
 #, elixir-autogen, elixir-format
 msgid "The client_id provided or the device_code associated is invalid"
 msgstr ""
@@ -1264,7 +1264,7 @@ msgstr ""
 msgid "The device user code was not provided before approving the application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:303
+#: lib/web/controllers/application_controller.ex:301
 #, elixir-autogen, elixir-format
 msgid "The given device_code has expired"
 msgstr ""
@@ -1274,7 +1274,7 @@ msgstr ""
 msgid "The given redirect_uri is not in the list of allowed redirect URIs"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:157
+#: lib/web/controllers/application_controller.ex:155
 #, elixir-autogen, elixir-format
 msgid "The given scope is not in the list of the app declared scopes"
 msgstr ""
@@ -1291,22 +1291,22 @@ msgstr ""
 msgid "The given user code is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:410
+#: lib/web/controllers/application_controller.ex:408
 #, elixir-autogen, elixir-format
 msgid "The provided client_id does not match the provided code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:413
+#: lib/web/controllers/application_controller.ex:411
 #, elixir-autogen, elixir-format
 msgid "The provided client_secret is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:406
+#: lib/web/controllers/application_controller.ex:404
 #, elixir-autogen, elixir-format
 msgid "The provided code is invalid or expired"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:417
+#: lib/web/controllers/application_controller.ex:415
 #, elixir-autogen, elixir-format
 msgid "The provided scope is invalid or not included in the app declared scopes"
 msgstr ""
@@ -1316,17 +1316,17 @@ msgstr ""
 msgid "The scope parameter is not a space separated list of valid scopes"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:291
+#: lib/web/controllers/application_controller.ex:289
 #, elixir-autogen, elixir-format
 msgid "The user rejected the requested authorization"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:403
+#: lib/web/controllers/application_controller.ex:401
 #, elixir-autogen, elixir-format
 msgid "This redirect URI is not allowed"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:380
+#: lib/web/controllers/application_controller.ex:378
 #, elixir-autogen, elixir-format, fuzzy
 msgid "Token not found"
 msgstr "Evento non trovato"
@@ -1336,27 +1336,27 @@ msgstr "Evento non trovato"
 msgid "Too many requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:183
+#: lib/web/controllers/application_controller.ex:181
 #, elixir-autogen, elixir-format
 msgid "Unable to produce device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:372
+#: lib/web/controllers/application_controller.ex:370
 #, elixir-autogen, elixir-format
 msgid "Unable to revoke token"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:197
+#: lib/web/controllers/application_controller.ex:195
 #, elixir-autogen, elixir-format
 msgid "You need to pass both client_id and scope as parameters to obtain a device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:135
+#: lib/web/controllers/application_controller.ex:133
 #, elixir-autogen, elixir-format
 msgid "You need to provide a valid redirect_uri to autorize an application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:125
+#: lib/web/controllers/application_controller.ex:123
 #, elixir-autogen, elixir-format
 msgid "You need to specify client_id, redirect_uri, scope and state to autorize an application"
 msgstr ""
@@ -1392,7 +1392,7 @@ msgstr ""
 msgid "This instance is pending follow approval"
 msgstr ""
 
-#: lib/graphql/schema/custom/timezone.ex:23
+#: lib/graphql/schema/custom/timezone.ex:25
 #, elixir-autogen, elixir-format
 msgid "Timezone ID %{timezone} is invalid"
 msgstr ""
diff --git a/priv/gettext/ja/LC_MESSAGES/default.po b/priv/gettext/ja/LC_MESSAGES/default.po
index ca7146e1f..aca43e360 100644
--- a/priv/gettext/ja/LC_MESSAGES/default.po
+++ b/priv/gettext/ja/LC_MESSAGES/default.po
@@ -102,7 +102,7 @@ msgstr ""
 msgid "You created an account on %{host} with this email address. You are one click away from activating it. If this wasn't you, please ignore this email."
 msgstr ""
 
-#: lib/web/email/participation.ex:114
+#: lib/web/email/participation.ex:115
 #, elixir-autogen, elixir-format
 msgid "Your participation to event %{title} has been approved"
 msgstr ""
@@ -132,7 +132,7 @@ msgstr ""
 msgid "Warning"
 msgstr "警告"
 
-#: lib/web/email/participation.ex:140
+#: lib/web/email/participation.ex:142
 #, elixir-autogen, elixir-format
 msgid "Confirm your participation to event %{title}"
 msgstr ""
@@ -966,7 +966,7 @@ msgstr "今日の調子はいかがですか？"
 
 #: lib/web/templates/email/event_participation_approved.html.heex:98
 #: lib/web/templates/email/event_participation_approved.text.eex:11
-#: lib/web/templates/email/event_participation_confirmed.html.heex:98
+#: lib/web/templates/email/event_participation_confirmed.html.heex:140
 #: lib/web/templates/email/event_participation_confirmed.text.eex:6
 #, elixir-autogen, elixir-format
 msgid "Would you wish to update or cancel your attendance, simply access the event page through the link above and click on the Attending button."
@@ -1282,7 +1282,7 @@ msgid "This is a demonstration site to test Mobilizon."
 msgstr ""
 
 #: lib/service/metadata/actor.ex:86
-#: lib/service/metadata/actor.ex:92
+#: lib/service/metadata/actor.ex:93
 #: lib/service/metadata/instance.ex:60
 #: lib/service/metadata/instance.ex:66
 #, elixir-autogen, elixir-format
@@ -1992,11 +1992,30 @@ msgid "Participant registration date"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:113
+#: lib/web/templates/email/event_participation_confirmed.html.heex:122
 #, elixir-autogen, elixir-format
 msgid "Cancel my attendance"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:90
+#: lib/web/templates/email/event_participation_confirmed.html.heex:99
 #, elixir-autogen, elixir-format
 msgid "If you wish to cancel your participation, simply click on the link below."
 msgstr ""
+
+#: lib/web/email/admin.ex:142
+#, elixir-autogen, elixir-format
+msgid "Email configuration test for %{instance}"
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:47
+#: lib/web/templates/email/email_configuration_test.text.eex:3
+#, elixir-autogen, elixir-format
+msgid "If you received this email, the email configuration seems to be correct."
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:18
+#: lib/web/templates/email/email_configuration_test.text.eex:1
+#, elixir-autogen, elixir-format
+msgid "Well done!"
+msgstr ""
diff --git a/priv/gettext/ja/LC_MESSAGES/errors.po b/priv/gettext/ja/LC_MESSAGES/errors.po
index 21601d0e8..40377a498 100644
--- a/priv/gettext/ja/LC_MESSAGES/errors.po
+++ b/priv/gettext/ja/LC_MESSAGES/errors.po
@@ -1166,23 +1166,23 @@ msgstr ""
 msgid "Impossible to create application."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:355
+#: lib/web/controllers/application_controller.ex:353
 #, elixir-autogen, elixir-format
 msgid "Incorrect parameters sent. You need to provide at least the grant_type and client_id parameters, depending on the grant type being used."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:328
+#: lib/web/controllers/application_controller.ex:326
 #, elixir-autogen, elixir-format
 msgid "Invalid client credentials provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:336
+#: lib/web/controllers/application_controller.ex:334
 #, elixir-autogen, elixir-format
 msgid "Invalid refresh token provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:169
-#: lib/web/controllers/application_controller.ex:400
+#: lib/web/controllers/application_controller.ex:167
+#: lib/web/controllers/application_controller.ex:398
 #, elixir-autogen, elixir-format
 msgid "No application was found with this client_id"
 msgstr ""
@@ -1208,17 +1208,17 @@ msgstr ""
 msgid "Not authorized to access this %{object_type}"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:278
+#: lib/web/controllers/application_controller.ex:276
 #, elixir-autogen, elixir-format
 msgid "Please slow down the rate of your requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:266
+#: lib/web/controllers/application_controller.ex:264
 #, elixir-autogen, elixir-format
 msgid "The authorization request is still pending"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:248
+#: lib/web/controllers/application_controller.ex:246
 #, elixir-autogen, elixir-format
 msgid "The client_id provided or the device_code associated is invalid"
 msgstr ""
@@ -1228,7 +1228,7 @@ msgstr ""
 msgid "The device user code was not provided before approving the application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:303
+#: lib/web/controllers/application_controller.ex:301
 #, elixir-autogen, elixir-format
 msgid "The given device_code has expired"
 msgstr ""
@@ -1238,7 +1238,7 @@ msgstr ""
 msgid "The given redirect_uri is not in the list of allowed redirect URIs"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:157
+#: lib/web/controllers/application_controller.ex:155
 #, elixir-autogen, elixir-format
 msgid "The given scope is not in the list of the app declared scopes"
 msgstr ""
@@ -1255,22 +1255,22 @@ msgstr ""
 msgid "The given user code is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:410
+#: lib/web/controllers/application_controller.ex:408
 #, elixir-autogen, elixir-format
 msgid "The provided client_id does not match the provided code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:413
+#: lib/web/controllers/application_controller.ex:411
 #, elixir-autogen, elixir-format
 msgid "The provided client_secret is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:406
+#: lib/web/controllers/application_controller.ex:404
 #, elixir-autogen, elixir-format
 msgid "The provided code is invalid or expired"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:417
+#: lib/web/controllers/application_controller.ex:415
 #, elixir-autogen, elixir-format
 msgid "The provided scope is invalid or not included in the app declared scopes"
 msgstr ""
@@ -1280,17 +1280,17 @@ msgstr ""
 msgid "The scope parameter is not a space separated list of valid scopes"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:291
+#: lib/web/controllers/application_controller.ex:289
 #, elixir-autogen, elixir-format
 msgid "The user rejected the requested authorization"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:403
+#: lib/web/controllers/application_controller.ex:401
 #, elixir-autogen, elixir-format
 msgid "This redirect URI is not allowed"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:380
+#: lib/web/controllers/application_controller.ex:378
 #, elixir-autogen, elixir-format, fuzzy
 msgid "Token not found"
 msgstr ""
@@ -1300,27 +1300,27 @@ msgstr ""
 msgid "Too many requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:183
+#: lib/web/controllers/application_controller.ex:181
 #, elixir-autogen, elixir-format
 msgid "Unable to produce device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:372
+#: lib/web/controllers/application_controller.ex:370
 #, elixir-autogen, elixir-format
 msgid "Unable to revoke token"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:197
+#: lib/web/controllers/application_controller.ex:195
 #, elixir-autogen, elixir-format
 msgid "You need to pass both client_id and scope as parameters to obtain a device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:135
+#: lib/web/controllers/application_controller.ex:133
 #, elixir-autogen, elixir-format
 msgid "You need to provide a valid redirect_uri to autorize an application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:125
+#: lib/web/controllers/application_controller.ex:123
 #, elixir-autogen, elixir-format
 msgid "You need to specify client_id, redirect_uri, scope and state to autorize an application"
 msgstr ""
@@ -1356,7 +1356,7 @@ msgstr ""
 msgid "This instance is pending follow approval"
 msgstr ""
 
-#: lib/graphql/schema/custom/timezone.ex:23
+#: lib/graphql/schema/custom/timezone.ex:25
 #, elixir-autogen, elixir-format
 msgid "Timezone ID %{timezone} is invalid"
 msgstr ""
diff --git a/priv/gettext/ko/LC_MESSAGES/default.po b/priv/gettext/ko/LC_MESSAGES/default.po
index 42eeef3ca..a1b49a565 100644
--- a/priv/gettext/ko/LC_MESSAGES/default.po
+++ b/priv/gettext/ko/LC_MESSAGES/default.po
@@ -106,7 +106,7 @@ msgstr ""
 msgid "You created an account on %{host} with this email address. You are one click away from activating it. If this wasn't you, please ignore this email."
 msgstr ""
 
-#: lib/web/email/participation.ex:114
+#: lib/web/email/participation.ex:115
 #, elixir-autogen, elixir-format
 msgid "Your participation to event %{title} has been approved"
 msgstr ""
@@ -136,7 +136,7 @@ msgstr ""
 msgid "Warning"
 msgstr ""
 
-#: lib/web/email/participation.ex:140
+#: lib/web/email/participation.ex:142
 #, elixir-autogen, elixir-format
 msgid "Confirm your participation to event %{title}"
 msgstr ""
@@ -970,7 +970,7 @@ msgstr ""
 
 #: lib/web/templates/email/event_participation_approved.html.heex:98
 #: lib/web/templates/email/event_participation_approved.text.eex:11
-#: lib/web/templates/email/event_participation_confirmed.html.heex:98
+#: lib/web/templates/email/event_participation_confirmed.html.heex:140
 #: lib/web/templates/email/event_participation_confirmed.text.eex:6
 #, elixir-autogen, elixir-format
 msgid "Would you wish to update or cancel your attendance, simply access the event page through the link above and click on the Attending button."
@@ -1284,7 +1284,7 @@ msgid "This is a demonstration site to test Mobilizon."
 msgstr ""
 
 #: lib/service/metadata/actor.ex:86
-#: lib/service/metadata/actor.ex:92
+#: lib/service/metadata/actor.ex:93
 #: lib/service/metadata/instance.ex:60
 #: lib/service/metadata/instance.ex:66
 #, elixir-autogen, elixir-format
@@ -1989,11 +1989,30 @@ msgid "Participant registration date"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:113
+#: lib/web/templates/email/event_participation_confirmed.html.heex:122
 #, elixir-autogen, elixir-format
 msgid "Cancel my attendance"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:90
+#: lib/web/templates/email/event_participation_confirmed.html.heex:99
 #, elixir-autogen, elixir-format
 msgid "If you wish to cancel your participation, simply click on the link below."
 msgstr ""
+
+#: lib/web/email/admin.ex:142
+#, elixir-autogen, elixir-format
+msgid "Email configuration test for %{instance}"
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:47
+#: lib/web/templates/email/email_configuration_test.text.eex:3
+#, elixir-autogen, elixir-format
+msgid "If you received this email, the email configuration seems to be correct."
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:18
+#: lib/web/templates/email/email_configuration_test.text.eex:1
+#, elixir-autogen, elixir-format
+msgid "Well done!"
+msgstr ""
diff --git a/priv/gettext/ko/LC_MESSAGES/errors.po b/priv/gettext/ko/LC_MESSAGES/errors.po
index a3259e409..d6260f61f 100644
--- a/priv/gettext/ko/LC_MESSAGES/errors.po
+++ b/priv/gettext/ko/LC_MESSAGES/errors.po
@@ -1159,23 +1159,23 @@ msgstr ""
 msgid "Impossible to create application."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:355
+#: lib/web/controllers/application_controller.ex:353
 #, elixir-autogen, elixir-format
 msgid "Incorrect parameters sent. You need to provide at least the grant_type and client_id parameters, depending on the grant type being used."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:328
+#: lib/web/controllers/application_controller.ex:326
 #, elixir-autogen, elixir-format
 msgid "Invalid client credentials provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:336
+#: lib/web/controllers/application_controller.ex:334
 #, elixir-autogen, elixir-format
 msgid "Invalid refresh token provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:169
-#: lib/web/controllers/application_controller.ex:400
+#: lib/web/controllers/application_controller.ex:167
+#: lib/web/controllers/application_controller.ex:398
 #, elixir-autogen, elixir-format
 msgid "No application was found with this client_id"
 msgstr ""
@@ -1201,17 +1201,17 @@ msgstr ""
 msgid "Not authorized to access this %{object_type}"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:278
+#: lib/web/controllers/application_controller.ex:276
 #, elixir-autogen, elixir-format
 msgid "Please slow down the rate of your requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:266
+#: lib/web/controllers/application_controller.ex:264
 #, elixir-autogen, elixir-format
 msgid "The authorization request is still pending"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:248
+#: lib/web/controllers/application_controller.ex:246
 #, elixir-autogen, elixir-format
 msgid "The client_id provided or the device_code associated is invalid"
 msgstr ""
@@ -1221,7 +1221,7 @@ msgstr ""
 msgid "The device user code was not provided before approving the application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:303
+#: lib/web/controllers/application_controller.ex:301
 #, elixir-autogen, elixir-format
 msgid "The given device_code has expired"
 msgstr ""
@@ -1231,7 +1231,7 @@ msgstr ""
 msgid "The given redirect_uri is not in the list of allowed redirect URIs"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:157
+#: lib/web/controllers/application_controller.ex:155
 #, elixir-autogen, elixir-format
 msgid "The given scope is not in the list of the app declared scopes"
 msgstr ""
@@ -1248,22 +1248,22 @@ msgstr ""
 msgid "The given user code is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:410
+#: lib/web/controllers/application_controller.ex:408
 #, elixir-autogen, elixir-format
 msgid "The provided client_id does not match the provided code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:413
+#: lib/web/controllers/application_controller.ex:411
 #, elixir-autogen, elixir-format
 msgid "The provided client_secret is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:406
+#: lib/web/controllers/application_controller.ex:404
 #, elixir-autogen, elixir-format
 msgid "The provided code is invalid or expired"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:417
+#: lib/web/controllers/application_controller.ex:415
 #, elixir-autogen, elixir-format
 msgid "The provided scope is invalid or not included in the app declared scopes"
 msgstr ""
@@ -1273,17 +1273,17 @@ msgstr ""
 msgid "The scope parameter is not a space separated list of valid scopes"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:291
+#: lib/web/controllers/application_controller.ex:289
 #, elixir-autogen, elixir-format
 msgid "The user rejected the requested authorization"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:403
+#: lib/web/controllers/application_controller.ex:401
 #, elixir-autogen, elixir-format
 msgid "This redirect URI is not allowed"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:380
+#: lib/web/controllers/application_controller.ex:378
 #, elixir-autogen, elixir-format
 msgid "Token not found"
 msgstr ""
@@ -1293,27 +1293,27 @@ msgstr ""
 msgid "Too many requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:183
+#: lib/web/controllers/application_controller.ex:181
 #, elixir-autogen, elixir-format
 msgid "Unable to produce device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:372
+#: lib/web/controllers/application_controller.ex:370
 #, elixir-autogen, elixir-format
 msgid "Unable to revoke token"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:197
+#: lib/web/controllers/application_controller.ex:195
 #, elixir-autogen, elixir-format
 msgid "You need to pass both client_id and scope as parameters to obtain a device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:135
+#: lib/web/controllers/application_controller.ex:133
 #, elixir-autogen, elixir-format
 msgid "You need to provide a valid redirect_uri to autorize an application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:125
+#: lib/web/controllers/application_controller.ex:123
 #, elixir-autogen, elixir-format
 msgid "You need to specify client_id, redirect_uri, scope and state to autorize an application"
 msgstr ""
@@ -1349,7 +1349,7 @@ msgstr ""
 msgid "This instance is pending follow approval"
 msgstr ""
 
-#: lib/graphql/schema/custom/timezone.ex:23
+#: lib/graphql/schema/custom/timezone.ex:25
 #, elixir-autogen, elixir-format
 msgid "Timezone ID %{timezone} is invalid"
 msgstr ""
diff --git a/priv/gettext/nb_NO/LC_MESSAGES/default.po b/priv/gettext/nb_NO/LC_MESSAGES/default.po
index 27cb3d328..1fa3658f2 100644
--- a/priv/gettext/nb_NO/LC_MESSAGES/default.po
+++ b/priv/gettext/nb_NO/LC_MESSAGES/default.po
@@ -108,7 +108,7 @@ msgstr ""
 msgid "You created an account on %{host} with this email address. You are one click away from activating it. If this wasn't you, please ignore this email."
 msgstr ""
 
-#: lib/web/email/participation.ex:114
+#: lib/web/email/participation.ex:115
 #, elixir-autogen, elixir-format
 msgid "Your participation to event %{title} has been approved"
 msgstr ""
@@ -138,7 +138,7 @@ msgstr ""
 msgid "Warning"
 msgstr ""
 
-#: lib/web/email/participation.ex:140
+#: lib/web/email/participation.ex:142
 #, elixir-autogen, elixir-format
 msgid "Confirm your participation to event %{title}"
 msgstr ""
@@ -978,7 +978,7 @@ msgstr ""
 
 #: lib/web/templates/email/event_participation_approved.html.heex:98
 #: lib/web/templates/email/event_participation_approved.text.eex:11
-#: lib/web/templates/email/event_participation_confirmed.html.heex:98
+#: lib/web/templates/email/event_participation_confirmed.html.heex:140
 #: lib/web/templates/email/event_participation_confirmed.text.eex:6
 #, elixir-autogen, elixir-format
 msgid "Would you wish to update or cancel your attendance, simply access the event page through the link above and click on the Attending button."
@@ -1292,7 +1292,7 @@ msgid "This is a demonstration site to test Mobilizon."
 msgstr ""
 
 #: lib/service/metadata/actor.ex:86
-#: lib/service/metadata/actor.ex:92
+#: lib/service/metadata/actor.ex:93
 #: lib/service/metadata/instance.ex:60
 #: lib/service/metadata/instance.ex:66
 #, elixir-autogen, elixir-format
@@ -1998,11 +1998,30 @@ msgid "Participant registration date"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:113
+#: lib/web/templates/email/event_participation_confirmed.html.heex:122
 #, elixir-autogen, elixir-format
 msgid "Cancel my attendance"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:90
+#: lib/web/templates/email/event_participation_confirmed.html.heex:99
 #, elixir-autogen, elixir-format
 msgid "If you wish to cancel your participation, simply click on the link below."
 msgstr ""
+
+#: lib/web/email/admin.ex:142
+#, elixir-autogen, elixir-format
+msgid "Email configuration test for %{instance}"
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:47
+#: lib/web/templates/email/email_configuration_test.text.eex:3
+#, elixir-autogen, elixir-format
+msgid "If you received this email, the email configuration seems to be correct."
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:18
+#: lib/web/templates/email/email_configuration_test.text.eex:1
+#, elixir-autogen, elixir-format
+msgid "Well done!"
+msgstr ""
diff --git a/priv/gettext/nb_NO/LC_MESSAGES/errors.po b/priv/gettext/nb_NO/LC_MESSAGES/errors.po
index 3c4dced4b..dc5c1d116 100644
--- a/priv/gettext/nb_NO/LC_MESSAGES/errors.po
+++ b/priv/gettext/nb_NO/LC_MESSAGES/errors.po
@@ -1165,23 +1165,23 @@ msgstr ""
 msgid "Impossible to create application."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:355
+#: lib/web/controllers/application_controller.ex:353
 #, elixir-autogen, elixir-format
 msgid "Incorrect parameters sent. You need to provide at least the grant_type and client_id parameters, depending on the grant type being used."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:328
+#: lib/web/controllers/application_controller.ex:326
 #, elixir-autogen, elixir-format
 msgid "Invalid client credentials provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:336
+#: lib/web/controllers/application_controller.ex:334
 #, elixir-autogen, elixir-format
 msgid "Invalid refresh token provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:169
-#: lib/web/controllers/application_controller.ex:400
+#: lib/web/controllers/application_controller.ex:167
+#: lib/web/controllers/application_controller.ex:398
 #, elixir-autogen, elixir-format
 msgid "No application was found with this client_id"
 msgstr ""
@@ -1207,17 +1207,17 @@ msgstr ""
 msgid "Not authorized to access this %{object_type}"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:278
+#: lib/web/controllers/application_controller.ex:276
 #, elixir-autogen, elixir-format
 msgid "Please slow down the rate of your requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:266
+#: lib/web/controllers/application_controller.ex:264
 #, elixir-autogen, elixir-format
 msgid "The authorization request is still pending"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:248
+#: lib/web/controllers/application_controller.ex:246
 #, elixir-autogen, elixir-format
 msgid "The client_id provided or the device_code associated is invalid"
 msgstr ""
@@ -1227,7 +1227,7 @@ msgstr ""
 msgid "The device user code was not provided before approving the application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:303
+#: lib/web/controllers/application_controller.ex:301
 #, elixir-autogen, elixir-format
 msgid "The given device_code has expired"
 msgstr ""
@@ -1237,7 +1237,7 @@ msgstr ""
 msgid "The given redirect_uri is not in the list of allowed redirect URIs"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:157
+#: lib/web/controllers/application_controller.ex:155
 #, elixir-autogen, elixir-format
 msgid "The given scope is not in the list of the app declared scopes"
 msgstr ""
@@ -1254,22 +1254,22 @@ msgstr ""
 msgid "The given user code is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:410
+#: lib/web/controllers/application_controller.ex:408
 #, elixir-autogen, elixir-format
 msgid "The provided client_id does not match the provided code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:413
+#: lib/web/controllers/application_controller.ex:411
 #, elixir-autogen, elixir-format
 msgid "The provided client_secret is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:406
+#: lib/web/controllers/application_controller.ex:404
 #, elixir-autogen, elixir-format
 msgid "The provided code is invalid or expired"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:417
+#: lib/web/controllers/application_controller.ex:415
 #, elixir-autogen, elixir-format
 msgid "The provided scope is invalid or not included in the app declared scopes"
 msgstr ""
@@ -1279,17 +1279,17 @@ msgstr ""
 msgid "The scope parameter is not a space separated list of valid scopes"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:291
+#: lib/web/controllers/application_controller.ex:289
 #, elixir-autogen, elixir-format
 msgid "The user rejected the requested authorization"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:403
+#: lib/web/controllers/application_controller.ex:401
 #, elixir-autogen, elixir-format
 msgid "This redirect URI is not allowed"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:380
+#: lib/web/controllers/application_controller.ex:378
 #, elixir-autogen, elixir-format, fuzzy
 msgid "Token not found"
 msgstr ""
@@ -1299,27 +1299,27 @@ msgstr ""
 msgid "Too many requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:183
+#: lib/web/controllers/application_controller.ex:181
 #, elixir-autogen, elixir-format
 msgid "Unable to produce device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:372
+#: lib/web/controllers/application_controller.ex:370
 #, elixir-autogen, elixir-format
 msgid "Unable to revoke token"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:197
+#: lib/web/controllers/application_controller.ex:195
 #, elixir-autogen, elixir-format
 msgid "You need to pass both client_id and scope as parameters to obtain a device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:135
+#: lib/web/controllers/application_controller.ex:133
 #, elixir-autogen, elixir-format
 msgid "You need to provide a valid redirect_uri to autorize an application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:125
+#: lib/web/controllers/application_controller.ex:123
 #, elixir-autogen, elixir-format
 msgid "You need to specify client_id, redirect_uri, scope and state to autorize an application"
 msgstr ""
@@ -1355,7 +1355,7 @@ msgstr ""
 msgid "This instance is pending follow approval"
 msgstr ""
 
-#: lib/graphql/schema/custom/timezone.ex:23
+#: lib/graphql/schema/custom/timezone.ex:25
 #, elixir-autogen, elixir-format
 msgid "Timezone ID %{timezone} is invalid"
 msgstr ""
diff --git a/priv/gettext/nl/LC_MESSAGES/default.po b/priv/gettext/nl/LC_MESSAGES/default.po
index 793b04154..5c20c272c 100644
--- a/priv/gettext/nl/LC_MESSAGES/default.po
+++ b/priv/gettext/nl/LC_MESSAGES/default.po
@@ -111,7 +111,7 @@ msgstr ""
 "U hebt een account op %{host} gemaakt met dit emailadres. U bent op één "
 "klik van de activering. Gelieve deze email te negeren als u dit niet was."
 
-#: lib/web/email/participation.ex:114
+#: lib/web/email/participation.ex:115
 #, elixir-autogen, elixir-format
 msgid "Your participation to event %{title} has been approved"
 msgstr "Uw deelname aan het evenement %{title} is goedgekeurd"
@@ -141,7 +141,7 @@ msgstr "U hebt een nieuw wachtwoord aangevraagd voor uw account op %{instance}."
 msgid "Warning"
 msgstr "Waarschuwing"
 
-#: lib/web/email/participation.ex:140
+#: lib/web/email/participation.ex:142
 #, elixir-autogen, elixir-format
 msgid "Confirm your participation to event %{title}"
 msgstr "Bevestig uw deelname aan het evenement %{title}"
@@ -992,7 +992,7 @@ msgstr ""
 
 #: lib/web/templates/email/event_participation_approved.html.heex:98
 #: lib/web/templates/email/event_participation_approved.text.eex:11
-#: lib/web/templates/email/event_participation_confirmed.html.heex:98
+#: lib/web/templates/email/event_participation_confirmed.html.heex:140
 #: lib/web/templates/email/event_participation_confirmed.text.eex:6
 #, elixir-autogen, elixir-format
 msgid "Would you wish to update or cancel your attendance, simply access the event page through the link above and click on the Attending button."
@@ -1312,7 +1312,7 @@ msgid "This is a demonstration site to test Mobilizon."
 msgstr "Dit is een demosite om de bètaversie van Mobilizon te testen."
 
 #: lib/service/metadata/actor.ex:86
-#: lib/service/metadata/actor.ex:92
+#: lib/service/metadata/actor.ex:93
 #: lib/service/metadata/instance.ex:60
 #: lib/service/metadata/instance.ex:66
 #, elixir-autogen, elixir-format
@@ -2028,11 +2028,30 @@ msgid "Participant registration date"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:113
+#: lib/web/templates/email/event_participation_confirmed.html.heex:122
 #, elixir-autogen, elixir-format
 msgid "Cancel my attendance"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:90
+#: lib/web/templates/email/event_participation_confirmed.html.heex:99
 #, elixir-autogen, elixir-format
 msgid "If you wish to cancel your participation, simply click on the link below."
 msgstr ""
+
+#: lib/web/email/admin.ex:142
+#, elixir-autogen, elixir-format
+msgid "Email configuration test for %{instance}"
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:47
+#: lib/web/templates/email/email_configuration_test.text.eex:3
+#, elixir-autogen, elixir-format
+msgid "If you received this email, the email configuration seems to be correct."
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:18
+#: lib/web/templates/email/email_configuration_test.text.eex:1
+#, elixir-autogen, elixir-format
+msgid "Well done!"
+msgstr ""
diff --git a/priv/gettext/nl/LC_MESSAGES/errors.po b/priv/gettext/nl/LC_MESSAGES/errors.po
index 95334a705..523a10661 100644
--- a/priv/gettext/nl/LC_MESSAGES/errors.po
+++ b/priv/gettext/nl/LC_MESSAGES/errors.po
@@ -1165,23 +1165,23 @@ msgstr ""
 msgid "Impossible to create application."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:355
+#: lib/web/controllers/application_controller.ex:353
 #, elixir-autogen, elixir-format
 msgid "Incorrect parameters sent. You need to provide at least the grant_type and client_id parameters, depending on the grant type being used."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:328
+#: lib/web/controllers/application_controller.ex:326
 #, elixir-autogen, elixir-format
 msgid "Invalid client credentials provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:336
+#: lib/web/controllers/application_controller.ex:334
 #, elixir-autogen, elixir-format
 msgid "Invalid refresh token provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:169
-#: lib/web/controllers/application_controller.ex:400
+#: lib/web/controllers/application_controller.ex:167
+#: lib/web/controllers/application_controller.ex:398
 #, elixir-autogen, elixir-format
 msgid "No application was found with this client_id"
 msgstr ""
@@ -1207,17 +1207,17 @@ msgstr ""
 msgid "Not authorized to access this %{object_type}"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:278
+#: lib/web/controllers/application_controller.ex:276
 #, elixir-autogen, elixir-format
 msgid "Please slow down the rate of your requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:266
+#: lib/web/controllers/application_controller.ex:264
 #, elixir-autogen, elixir-format
 msgid "The authorization request is still pending"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:248
+#: lib/web/controllers/application_controller.ex:246
 #, elixir-autogen, elixir-format
 msgid "The client_id provided or the device_code associated is invalid"
 msgstr ""
@@ -1227,7 +1227,7 @@ msgstr ""
 msgid "The device user code was not provided before approving the application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:303
+#: lib/web/controllers/application_controller.ex:301
 #, elixir-autogen, elixir-format
 msgid "The given device_code has expired"
 msgstr ""
@@ -1237,7 +1237,7 @@ msgstr ""
 msgid "The given redirect_uri is not in the list of allowed redirect URIs"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:157
+#: lib/web/controllers/application_controller.ex:155
 #, elixir-autogen, elixir-format
 msgid "The given scope is not in the list of the app declared scopes"
 msgstr ""
@@ -1254,22 +1254,22 @@ msgstr ""
 msgid "The given user code is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:410
+#: lib/web/controllers/application_controller.ex:408
 #, elixir-autogen, elixir-format
 msgid "The provided client_id does not match the provided code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:413
+#: lib/web/controllers/application_controller.ex:411
 #, elixir-autogen, elixir-format
 msgid "The provided client_secret is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:406
+#: lib/web/controllers/application_controller.ex:404
 #, elixir-autogen, elixir-format
 msgid "The provided code is invalid or expired"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:417
+#: lib/web/controllers/application_controller.ex:415
 #, elixir-autogen, elixir-format
 msgid "The provided scope is invalid or not included in the app declared scopes"
 msgstr ""
@@ -1279,17 +1279,17 @@ msgstr ""
 msgid "The scope parameter is not a space separated list of valid scopes"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:291
+#: lib/web/controllers/application_controller.ex:289
 #, elixir-autogen, elixir-format
 msgid "The user rejected the requested authorization"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:403
+#: lib/web/controllers/application_controller.ex:401
 #, elixir-autogen, elixir-format
 msgid "This redirect URI is not allowed"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:380
+#: lib/web/controllers/application_controller.ex:378
 #, elixir-autogen, elixir-format, fuzzy
 msgid "Token not found"
 msgstr ""
@@ -1299,27 +1299,27 @@ msgstr ""
 msgid "Too many requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:183
+#: lib/web/controllers/application_controller.ex:181
 #, elixir-autogen, elixir-format
 msgid "Unable to produce device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:372
+#: lib/web/controllers/application_controller.ex:370
 #, elixir-autogen, elixir-format
 msgid "Unable to revoke token"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:197
+#: lib/web/controllers/application_controller.ex:195
 #, elixir-autogen, elixir-format
 msgid "You need to pass both client_id and scope as parameters to obtain a device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:135
+#: lib/web/controllers/application_controller.ex:133
 #, elixir-autogen, elixir-format
 msgid "You need to provide a valid redirect_uri to autorize an application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:125
+#: lib/web/controllers/application_controller.ex:123
 #, elixir-autogen, elixir-format
 msgid "You need to specify client_id, redirect_uri, scope and state to autorize an application"
 msgstr ""
@@ -1355,7 +1355,7 @@ msgstr ""
 msgid "This instance is pending follow approval"
 msgstr ""
 
-#: lib/graphql/schema/custom/timezone.ex:23
+#: lib/graphql/schema/custom/timezone.ex:25
 #, elixir-autogen, elixir-format
 msgid "Timezone ID %{timezone} is invalid"
 msgstr ""
diff --git a/priv/gettext/nn/LC_MESSAGES/default.po b/priv/gettext/nn/LC_MESSAGES/default.po
index db4551a52..e2d619a43 100644
--- a/priv/gettext/nn/LC_MESSAGES/default.po
+++ b/priv/gettext/nn/LC_MESSAGES/default.po
@@ -111,7 +111,7 @@ msgstr ""
 "klikk unna å aktivera kontoen. Viss du ikkje oppretta nokon konto, kan du "
 "berre oversjå denne eposten."
 
-#: lib/web/email/participation.ex:114
+#: lib/web/email/participation.ex:115
 #, elixir-autogen, elixir-format
 msgid "Your participation to event %{title} has been approved"
 msgstr "Deltakinga di på hendinga %{title} er godkjent"
@@ -141,7 +141,7 @@ msgstr "Du ba om eit nytt passord for brukarkontoen din på %{instance}."
 msgid "Warning"
 msgstr "Åtvaring"
 
-#: lib/web/email/participation.ex:140
+#: lib/web/email/participation.ex:142
 #, elixir-autogen, elixir-format
 msgid "Confirm your participation to event %{title}"
 msgstr "Stadfest at du vil delta på hendinga %{title}"
@@ -1151,7 +1151,7 @@ msgstr "Kva skjer i dag?"
 
 #: lib/web/templates/email/event_participation_approved.html.heex:98
 #: lib/web/templates/email/event_participation_approved.text.eex:11
-#: lib/web/templates/email/event_participation_confirmed.html.heex:98
+#: lib/web/templates/email/event_participation_confirmed.html.heex:140
 #: lib/web/templates/email/event_participation_confirmed.text.eex:6
 #, elixir-autogen, elixir-format
 msgid "Would you wish to update or cancel your attendance, simply access the event page through the link above and click on the Attending button."
@@ -1566,7 +1566,7 @@ msgid "This is a demonstration site to test Mobilizon."
 msgstr "Dette er ei demoside for å prøva ut Mobilizon."
 
 #: lib/service/metadata/actor.ex:86
-#: lib/service/metadata/actor.ex:92
+#: lib/service/metadata/actor.ex:93
 #: lib/service/metadata/instance.ex:60
 #: lib/service/metadata/instance.ex:66
 #, elixir-autogen, elixir-format
@@ -2321,11 +2321,30 @@ msgid "Participant registration date"
 msgstr "Deltakarstatus"
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:113
+#: lib/web/templates/email/event_participation_confirmed.html.heex:122
 #, elixir-autogen, elixir-format
 msgid "Cancel my attendance"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:90
+#: lib/web/templates/email/event_participation_confirmed.html.heex:99
 #, elixir-autogen, elixir-format
 msgid "If you wish to cancel your participation, simply click on the link below."
 msgstr ""
+
+#: lib/web/email/admin.ex:142
+#, elixir-autogen, elixir-format
+msgid "Email configuration test for %{instance}"
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:47
+#: lib/web/templates/email/email_configuration_test.text.eex:3
+#, elixir-autogen, elixir-format
+msgid "If you received this email, the email configuration seems to be correct."
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:18
+#: lib/web/templates/email/email_configuration_test.text.eex:1
+#, elixir-autogen, elixir-format
+msgid "Well done!"
+msgstr ""
diff --git a/priv/gettext/nn/LC_MESSAGES/errors.po b/priv/gettext/nn/LC_MESSAGES/errors.po
index 6b13457a7..a842f0712 100644
--- a/priv/gettext/nn/LC_MESSAGES/errors.po
+++ b/priv/gettext/nn/LC_MESSAGES/errors.po
@@ -1209,23 +1209,23 @@ msgstr "Greidde ikkje lagra rapporten"
 msgid "Impossible to create application."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:355
+#: lib/web/controllers/application_controller.ex:353
 #, elixir-autogen, elixir-format
 msgid "Incorrect parameters sent. You need to provide at least the grant_type and client_id parameters, depending on the grant type being used."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:328
+#: lib/web/controllers/application_controller.ex:326
 #, elixir-autogen, elixir-format
 msgid "Invalid client credentials provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:336
+#: lib/web/controllers/application_controller.ex:334
 #, elixir-autogen, elixir-format
 msgid "Invalid refresh token provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:169
-#: lib/web/controllers/application_controller.ex:400
+#: lib/web/controllers/application_controller.ex:167
+#: lib/web/controllers/application_controller.ex:398
 #, elixir-autogen, elixir-format
 msgid "No application was found with this client_id"
 msgstr ""
@@ -1251,17 +1251,17 @@ msgstr ""
 msgid "Not authorized to access this %{object_type}"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:278
+#: lib/web/controllers/application_controller.ex:276
 #, elixir-autogen, elixir-format
 msgid "Please slow down the rate of your requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:266
+#: lib/web/controllers/application_controller.ex:264
 #, elixir-autogen, elixir-format
 msgid "The authorization request is still pending"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:248
+#: lib/web/controllers/application_controller.ex:246
 #, elixir-autogen, elixir-format
 msgid "The client_id provided or the device_code associated is invalid"
 msgstr ""
@@ -1271,7 +1271,7 @@ msgstr ""
 msgid "The device user code was not provided before approving the application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:303
+#: lib/web/controllers/application_controller.ex:301
 #, elixir-autogen, elixir-format
 msgid "The given device_code has expired"
 msgstr ""
@@ -1281,7 +1281,7 @@ msgstr ""
 msgid "The given redirect_uri is not in the list of allowed redirect URIs"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:157
+#: lib/web/controllers/application_controller.ex:155
 #, elixir-autogen, elixir-format
 msgid "The given scope is not in the list of the app declared scopes"
 msgstr ""
@@ -1298,22 +1298,22 @@ msgstr ""
 msgid "The given user code is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:410
+#: lib/web/controllers/application_controller.ex:408
 #, elixir-autogen, elixir-format
 msgid "The provided client_id does not match the provided code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:413
+#: lib/web/controllers/application_controller.ex:411
 #, elixir-autogen, elixir-format
 msgid "The provided client_secret is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:406
+#: lib/web/controllers/application_controller.ex:404
 #, elixir-autogen, elixir-format
 msgid "The provided code is invalid or expired"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:417
+#: lib/web/controllers/application_controller.ex:415
 #, elixir-autogen, elixir-format
 msgid "The provided scope is invalid or not included in the app declared scopes"
 msgstr ""
@@ -1323,17 +1323,17 @@ msgstr ""
 msgid "The scope parameter is not a space separated list of valid scopes"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:291
+#: lib/web/controllers/application_controller.ex:289
 #, elixir-autogen, elixir-format
 msgid "The user rejected the requested authorization"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:403
+#: lib/web/controllers/application_controller.ex:401
 #, elixir-autogen, elixir-format
 msgid "This redirect URI is not allowed"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:380
+#: lib/web/controllers/application_controller.ex:378
 #, elixir-autogen, elixir-format, fuzzy
 msgid "Token not found"
 msgstr "Fann ikkje hendinga"
@@ -1343,27 +1343,27 @@ msgstr "Fann ikkje hendinga"
 msgid "Too many requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:183
+#: lib/web/controllers/application_controller.ex:181
 #, elixir-autogen, elixir-format
 msgid "Unable to produce device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:372
+#: lib/web/controllers/application_controller.ex:370
 #, elixir-autogen, elixir-format
 msgid "Unable to revoke token"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:197
+#: lib/web/controllers/application_controller.ex:195
 #, elixir-autogen, elixir-format
 msgid "You need to pass both client_id and scope as parameters to obtain a device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:135
+#: lib/web/controllers/application_controller.ex:133
 #, elixir-autogen, elixir-format
 msgid "You need to provide a valid redirect_uri to autorize an application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:125
+#: lib/web/controllers/application_controller.ex:123
 #, elixir-autogen, elixir-format
 msgid "You need to specify client_id, redirect_uri, scope and state to autorize an application"
 msgstr ""
@@ -1399,7 +1399,7 @@ msgstr ""
 msgid "This instance is pending follow approval"
 msgstr ""
 
-#: lib/graphql/schema/custom/timezone.ex:23
+#: lib/graphql/schema/custom/timezone.ex:25
 #, elixir-autogen, elixir-format
 msgid "Timezone ID %{timezone} is invalid"
 msgstr ""
diff --git a/priv/gettext/oc/LC_MESSAGES/default.po b/priv/gettext/oc/LC_MESSAGES/default.po
index 7c3767bb7..9fe4ea1d5 100644
--- a/priv/gettext/oc/LC_MESSAGES/default.po
+++ b/priv/gettext/oc/LC_MESSAGES/default.po
@@ -103,7 +103,7 @@ msgstr "Reïnicializar vòstre senhal es facil. Clicatz simplament lo boton e se
 msgid "You created an account on %{host} with this email address. You are one click away from activating it. If this wasn't you, please ignore this email."
 msgstr "Avètz creat un compte sus %{host} amb aquesta adreça electronica. Sètz a un clic de l’activar."
 
-#: lib/web/email/participation.ex:114
+#: lib/web/email/participation.ex:115
 #, elixir-autogen, elixir-format
 msgid "Your participation to event %{title} has been approved"
 msgstr "Vòstra participacion a l’eveniment %{title} es estada aprovada"
@@ -133,7 +133,7 @@ msgstr "Avètz demandat un nòu senhal per vòstre compte sus %{instance}."
 msgid "Warning"
 msgstr "Avertiment"
 
-#: lib/web/email/participation.ex:140
+#: lib/web/email/participation.ex:142
 #, elixir-autogen, elixir-format
 msgid "Confirm your participation to event %{title}"
 msgstr "Confirmatz vòstra participacion a l’eveniment %{title}"
@@ -1065,7 +1065,7 @@ msgstr "Qué de nòu uèi ?"
 
 #: lib/web/templates/email/event_participation_approved.html.heex:98
 #: lib/web/templates/email/event_participation_approved.text.eex:11
-#: lib/web/templates/email/event_participation_confirmed.html.heex:98
+#: lib/web/templates/email/event_participation_confirmed.html.heex:140
 #: lib/web/templates/email/event_participation_confirmed.text.eex:6
 #, elixir-autogen, elixir-format
 msgid "Would you wish to update or cancel your attendance, simply access the event page through the link above and click on the Attending button."
@@ -1387,7 +1387,7 @@ msgstr ""
 "Aquò es un site de demostracion per ensajar la version beta de Mobilizon."
 
 #: lib/service/metadata/actor.ex:86
-#: lib/service/metadata/actor.ex:92
+#: lib/service/metadata/actor.ex:93
 #: lib/service/metadata/instance.ex:60
 #: lib/service/metadata/instance.ex:66
 #, elixir-autogen, elixir-format
@@ -2095,11 +2095,30 @@ msgid "Participant registration date"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:113
+#: lib/web/templates/email/event_participation_confirmed.html.heex:122
 #, elixir-autogen, elixir-format
 msgid "Cancel my attendance"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:90
+#: lib/web/templates/email/event_participation_confirmed.html.heex:99
 #, elixir-autogen, elixir-format
 msgid "If you wish to cancel your participation, simply click on the link below."
 msgstr ""
+
+#: lib/web/email/admin.ex:142
+#, elixir-autogen, elixir-format
+msgid "Email configuration test for %{instance}"
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:47
+#: lib/web/templates/email/email_configuration_test.text.eex:3
+#, elixir-autogen, elixir-format
+msgid "If you received this email, the email configuration seems to be correct."
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:18
+#: lib/web/templates/email/email_configuration_test.text.eex:1
+#, elixir-autogen, elixir-format
+msgid "Well done!"
+msgstr ""
diff --git a/priv/gettext/oc/LC_MESSAGES/errors.po b/priv/gettext/oc/LC_MESSAGES/errors.po
index 6683a7b83..86e10f9d7 100644
--- a/priv/gettext/oc/LC_MESSAGES/errors.po
+++ b/priv/gettext/oc/LC_MESSAGES/errors.po
@@ -1177,23 +1177,23 @@ msgstr "Error mentre que sauvant lo rapòrt"
 msgid "Impossible to create application."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:355
+#: lib/web/controllers/application_controller.ex:353
 #, elixir-autogen, elixir-format
 msgid "Incorrect parameters sent. You need to provide at least the grant_type and client_id parameters, depending on the grant type being used."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:328
+#: lib/web/controllers/application_controller.ex:326
 #, elixir-autogen, elixir-format
 msgid "Invalid client credentials provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:336
+#: lib/web/controllers/application_controller.ex:334
 #, elixir-autogen, elixir-format
 msgid "Invalid refresh token provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:169
-#: lib/web/controllers/application_controller.ex:400
+#: lib/web/controllers/application_controller.ex:167
+#: lib/web/controllers/application_controller.ex:398
 #, elixir-autogen, elixir-format
 msgid "No application was found with this client_id"
 msgstr ""
@@ -1219,17 +1219,17 @@ msgstr ""
 msgid "Not authorized to access this %{object_type}"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:278
+#: lib/web/controllers/application_controller.ex:276
 #, elixir-autogen, elixir-format
 msgid "Please slow down the rate of your requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:266
+#: lib/web/controllers/application_controller.ex:264
 #, elixir-autogen, elixir-format
 msgid "The authorization request is still pending"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:248
+#: lib/web/controllers/application_controller.ex:246
 #, elixir-autogen, elixir-format
 msgid "The client_id provided or the device_code associated is invalid"
 msgstr ""
@@ -1239,7 +1239,7 @@ msgstr ""
 msgid "The device user code was not provided before approving the application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:303
+#: lib/web/controllers/application_controller.ex:301
 #, elixir-autogen, elixir-format
 msgid "The given device_code has expired"
 msgstr ""
@@ -1249,7 +1249,7 @@ msgstr ""
 msgid "The given redirect_uri is not in the list of allowed redirect URIs"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:157
+#: lib/web/controllers/application_controller.ex:155
 #, elixir-autogen, elixir-format
 msgid "The given scope is not in the list of the app declared scopes"
 msgstr ""
@@ -1266,22 +1266,22 @@ msgstr ""
 msgid "The given user code is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:410
+#: lib/web/controllers/application_controller.ex:408
 #, elixir-autogen, elixir-format
 msgid "The provided client_id does not match the provided code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:413
+#: lib/web/controllers/application_controller.ex:411
 #, elixir-autogen, elixir-format
 msgid "The provided client_secret is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:406
+#: lib/web/controllers/application_controller.ex:404
 #, elixir-autogen, elixir-format
 msgid "The provided code is invalid or expired"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:417
+#: lib/web/controllers/application_controller.ex:415
 #, elixir-autogen, elixir-format
 msgid "The provided scope is invalid or not included in the app declared scopes"
 msgstr ""
@@ -1291,17 +1291,17 @@ msgstr ""
 msgid "The scope parameter is not a space separated list of valid scopes"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:291
+#: lib/web/controllers/application_controller.ex:289
 #, elixir-autogen, elixir-format
 msgid "The user rejected the requested authorization"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:403
+#: lib/web/controllers/application_controller.ex:401
 #, elixir-autogen, elixir-format
 msgid "This redirect URI is not allowed"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:380
+#: lib/web/controllers/application_controller.ex:378
 #, elixir-autogen, elixir-format, fuzzy
 msgid "Token not found"
 msgstr "Eveniment non trobat"
@@ -1311,27 +1311,27 @@ msgstr "Eveniment non trobat"
 msgid "Too many requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:183
+#: lib/web/controllers/application_controller.ex:181
 #, elixir-autogen, elixir-format
 msgid "Unable to produce device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:372
+#: lib/web/controllers/application_controller.ex:370
 #, elixir-autogen, elixir-format
 msgid "Unable to revoke token"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:197
+#: lib/web/controllers/application_controller.ex:195
 #, elixir-autogen, elixir-format
 msgid "You need to pass both client_id and scope as parameters to obtain a device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:135
+#: lib/web/controllers/application_controller.ex:133
 #, elixir-autogen, elixir-format
 msgid "You need to provide a valid redirect_uri to autorize an application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:125
+#: lib/web/controllers/application_controller.ex:123
 #, elixir-autogen, elixir-format
 msgid "You need to specify client_id, redirect_uri, scope and state to autorize an application"
 msgstr ""
@@ -1367,7 +1367,7 @@ msgstr ""
 msgid "This instance is pending follow approval"
 msgstr ""
 
-#: lib/graphql/schema/custom/timezone.ex:23
+#: lib/graphql/schema/custom/timezone.ex:25
 #, elixir-autogen, elixir-format
 msgid "Timezone ID %{timezone} is invalid"
 msgstr ""
diff --git a/priv/gettext/pl/LC_MESSAGES/default.po b/priv/gettext/pl/LC_MESSAGES/default.po
index 55e55ff15..69bc7059a 100644
--- a/priv/gettext/pl/LC_MESSAGES/default.po
+++ b/priv/gettext/pl/LC_MESSAGES/default.po
@@ -113,7 +113,7 @@ msgstr ""
 "jedno kliknięcie do aktywacji go. Jeżeli to nie Ty, po prostu zignoruj ten "
 "e-mail."
 
-#: lib/web/email/participation.ex:114
+#: lib/web/email/participation.ex:115
 #, elixir-autogen, elixir-format
 msgid "Your participation to event %{title} has been approved"
 msgstr "Twój udział w wydarzeniu %{title} został zatwierdzony"
@@ -143,7 +143,7 @@ msgstr "Poprosiłeś(-aś) o nowe hasło do swojego konta na %{instance}."
 msgid "Warning"
 msgstr "Ostrzeżenie"
 
-#: lib/web/email/participation.ex:140
+#: lib/web/email/participation.ex:142
 #, elixir-autogen, elixir-format
 msgid "Confirm your participation to event %{title}"
 msgstr "Potwierdź swoje uczestnictwo w wydarzeniu %{title}"
@@ -1192,7 +1192,7 @@ msgstr "Co dziś się wydarzy?"
 
 #: lib/web/templates/email/event_participation_approved.html.heex:98
 #: lib/web/templates/email/event_participation_approved.text.eex:11
-#: lib/web/templates/email/event_participation_confirmed.html.heex:98
+#: lib/web/templates/email/event_participation_confirmed.html.heex:140
 #: lib/web/templates/email/event_participation_confirmed.text.eex:6
 #, elixir-autogen, elixir-format
 msgid "Would you wish to update or cancel your attendance, simply access the event page through the link above and click on the Attending button."
@@ -1617,7 +1617,7 @@ msgid "This is a demonstration site to test Mobilizon."
 msgstr "To jest strona demonstracyjna pozwalająca na przetestowanie Mobilizon."
 
 #: lib/service/metadata/actor.ex:86
-#: lib/service/metadata/actor.ex:92
+#: lib/service/metadata/actor.ex:93
 #: lib/service/metadata/instance.ex:60
 #: lib/service/metadata/instance.ex:66
 #, elixir-autogen, elixir-format
@@ -2385,11 +2385,30 @@ msgid "Participant registration date"
 msgstr "Data rejestracji uczestnika"
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:113
+#: lib/web/templates/email/event_participation_confirmed.html.heex:122
 #, elixir-autogen, elixir-format
 msgid "Cancel my attendance"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:90
+#: lib/web/templates/email/event_participation_confirmed.html.heex:99
 #, elixir-autogen, elixir-format
 msgid "If you wish to cancel your participation, simply click on the link below."
 msgstr ""
+
+#: lib/web/email/admin.ex:142
+#, elixir-autogen, elixir-format
+msgid "Email configuration test for %{instance}"
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:47
+#: lib/web/templates/email/email_configuration_test.text.eex:3
+#, elixir-autogen, elixir-format
+msgid "If you received this email, the email configuration seems to be correct."
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:18
+#: lib/web/templates/email/email_configuration_test.text.eex:1
+#, elixir-autogen, elixir-format
+msgid "Well done!"
+msgstr ""
diff --git a/priv/gettext/pl/LC_MESSAGES/errors.po b/priv/gettext/pl/LC_MESSAGES/errors.po
index 2103b31ea..3764693eb 100644
--- a/priv/gettext/pl/LC_MESSAGES/errors.po
+++ b/priv/gettext/pl/LC_MESSAGES/errors.po
@@ -1220,25 +1220,25 @@ msgstr "Błąd podczas unieważniania tokena"
 msgid "Impossible to create application."
 msgstr "Nie da się utworzyć aplikacji."
 
-#: lib/web/controllers/application_controller.ex:355
+#: lib/web/controllers/application_controller.ex:353
 #, elixir-autogen, elixir-format
 msgid "Incorrect parameters sent. You need to provide at least the grant_type and client_id parameters, depending on the grant type being used."
 msgstr ""
 "Wysłano nieprawidłowe parametry. Należy podać co najmniej parametry "
 "grant_type i client_id, w zależności od używanego typu grantu."
 
-#: lib/web/controllers/application_controller.ex:328
+#: lib/web/controllers/application_controller.ex:326
 #, elixir-autogen, elixir-format
 msgid "Invalid client credentials provided"
 msgstr "Podano nieprawidłowe informacje uwierzytelniające klienta"
 
-#: lib/web/controllers/application_controller.ex:336
+#: lib/web/controllers/application_controller.ex:334
 #, elixir-autogen, elixir-format
 msgid "Invalid refresh token provided"
 msgstr "Podano nieprawidłowy token odświeżania"
 
-#: lib/web/controllers/application_controller.ex:169
-#: lib/web/controllers/application_controller.ex:400
+#: lib/web/controllers/application_controller.ex:167
+#: lib/web/controllers/application_controller.ex:398
 #, elixir-autogen, elixir-format
 msgid "No application was found with this client_id"
 msgstr "Nie znaleziono aplikacji o tym identyfikatorze client_id"
@@ -1264,17 +1264,17 @@ msgstr "Brak uprawnień dostępu do obiektu %{object}"
 msgid "Not authorized to access this %{object_type}"
 msgstr "Brak uprawnień dostępu do tego %{object_type}"
 
-#: lib/web/controllers/application_controller.ex:278
+#: lib/web/controllers/application_controller.ex:276
 #, elixir-autogen, elixir-format
 msgid "Please slow down the rate of your requests"
 msgstr "Prosimy o zwolnienie tempa wysyłania żądań"
 
-#: lib/web/controllers/application_controller.ex:266
+#: lib/web/controllers/application_controller.ex:264
 #, elixir-autogen, elixir-format
 msgid "The authorization request is still pending"
 msgstr "Żądanie autoryzacji jest nadal w toku"
 
-#: lib/web/controllers/application_controller.ex:248
+#: lib/web/controllers/application_controller.ex:246
 #, elixir-autogen, elixir-format
 msgid "The client_id provided or the device_code associated is invalid"
 msgstr "Nieprawidłowy identyfikator client_id lub powiązany kod device_code"
@@ -1284,7 +1284,7 @@ msgstr "Nieprawidłowy identyfikator client_id lub powiązany kod device_code"
 msgid "The device user code was not provided before approving the application"
 msgstr "Przed zatwierdzeniem aplikacji nie podano kodu użytkownika urządzenia"
 
-#: lib/web/controllers/application_controller.ex:303
+#: lib/web/controllers/application_controller.ex:301
 #, elixir-autogen, elixir-format
 msgid "The given device_code has expired"
 msgstr "Podany kod device_code wygasł"
@@ -1295,7 +1295,7 @@ msgid "The given redirect_uri is not in the list of allowed redirect URIs"
 msgstr ""
 "Podany redirect_uri nie znajduje się na liście dozwolonych URI przekierowania"
 
-#: lib/web/controllers/application_controller.ex:157
+#: lib/web/controllers/application_controller.ex:155
 #, elixir-autogen, elixir-format
 msgid "The given scope is not in the list of the app declared scopes"
 msgstr ""
@@ -1313,22 +1313,22 @@ msgstr "Podany kod użytkownika wygasł"
 msgid "The given user code is invalid"
 msgstr "Podany kod użytkownika jest nieprawidłowy"
 
-#: lib/web/controllers/application_controller.ex:410
+#: lib/web/controllers/application_controller.ex:408
 #, elixir-autogen, elixir-format
 msgid "The provided client_id does not match the provided code"
 msgstr "Identyfikator client_id nie pasuje do podanego kodu"
 
-#: lib/web/controllers/application_controller.ex:413
+#: lib/web/controllers/application_controller.ex:411
 #, elixir-autogen, elixir-format
 msgid "The provided client_secret is invalid"
 msgstr "Podany client_secret jest nieprawidłowy"
 
-#: lib/web/controllers/application_controller.ex:406
+#: lib/web/controllers/application_controller.ex:404
 #, elixir-autogen, elixir-format
 msgid "The provided code is invalid or expired"
 msgstr "Podany kod jest nieprawidłowy lub wygasł"
 
-#: lib/web/controllers/application_controller.ex:417
+#: lib/web/controllers/application_controller.ex:415
 #, elixir-autogen, elixir-format
 msgid "The provided scope is invalid or not included in the app declared scopes"
 msgstr ""
@@ -1341,17 +1341,17 @@ msgid "The scope parameter is not a space separated list of valid scopes"
 msgstr ""
 "Parametr scope nie jest rozdzieloną spacjami listą prawidłowych zakresów"
 
-#: lib/web/controllers/application_controller.ex:291
+#: lib/web/controllers/application_controller.ex:289
 #, elixir-autogen, elixir-format
 msgid "The user rejected the requested authorization"
 msgstr "Użytkownik odrzucił żądaną autoryzację"
 
-#: lib/web/controllers/application_controller.ex:403
+#: lib/web/controllers/application_controller.ex:401
 #, elixir-autogen, elixir-format
 msgid "This redirect URI is not allowed"
 msgstr "Ten URI przekierowania jest niedozwolony"
 
-#: lib/web/controllers/application_controller.ex:380
+#: lib/web/controllers/application_controller.ex:378
 #, elixir-autogen, elixir-format
 msgid "Token not found"
 msgstr "Nie znaleziono tokena"
@@ -1361,29 +1361,29 @@ msgstr "Nie znaleziono tokena"
 msgid "Too many requests"
 msgstr "Zbyt wiele żądań"
 
-#: lib/web/controllers/application_controller.ex:183
+#: lib/web/controllers/application_controller.ex:181
 #, elixir-autogen, elixir-format
 msgid "Unable to produce device code"
 msgstr "Nie można wygenerować kodu urządzenia"
 
-#: lib/web/controllers/application_controller.ex:372
+#: lib/web/controllers/application_controller.ex:370
 #, elixir-autogen, elixir-format
 msgid "Unable to revoke token"
 msgstr "Nie można unieważnić tokena"
 
-#: lib/web/controllers/application_controller.ex:197
+#: lib/web/controllers/application_controller.ex:195
 #, elixir-autogen, elixir-format
 msgid "You need to pass both client_id and scope as parameters to obtain a device code"
 msgstr ""
 "Aby uzyskać kod urządzenia, należy określić zarówno client_id, jak i scope "
 "jako parametry"
 
-#: lib/web/controllers/application_controller.ex:135
+#: lib/web/controllers/application_controller.ex:133
 #, elixir-autogen, elixir-format
 msgid "You need to provide a valid redirect_uri to autorize an application"
 msgstr "Aby autoryzować aplikację, należy podać prawidłowe redirect_uri"
 
-#: lib/web/controllers/application_controller.ex:125
+#: lib/web/controllers/application_controller.ex:123
 #, elixir-autogen, elixir-format
 msgid "You need to specify client_id, redirect_uri, scope and state to autorize an application"
 msgstr ""
@@ -1423,7 +1423,7 @@ msgstr "Ta sama subskrypcja push została już zarejestrowana"
 msgid "This instance is pending follow approval"
 msgstr "Ta instancja oczekuje na zatwierdzenie obserwacji"
 
-#: lib/graphql/schema/custom/timezone.ex:23
+#: lib/graphql/schema/custom/timezone.ex:25
 #, elixir-autogen, elixir-format
 msgid "Timezone ID %{timezone} is invalid"
 msgstr "Identyfikator strefy czasowej %{timezone} jest nieprawidłowy"
diff --git a/priv/gettext/pt/LC_MESSAGES/default.po b/priv/gettext/pt/LC_MESSAGES/default.po
index 739e68bf4..47319fc74 100644
--- a/priv/gettext/pt/LC_MESSAGES/default.po
+++ b/priv/gettext/pt/LC_MESSAGES/default.po
@@ -101,7 +101,7 @@ msgstr ""
 msgid "You created an account on %{host} with this email address. You are one click away from activating it. If this wasn't you, please ignore this email."
 msgstr ""
 
-#: lib/web/email/participation.ex:114
+#: lib/web/email/participation.ex:115
 #, elixir-autogen, elixir-format
 msgid "Your participation to event %{title} has been approved"
 msgstr ""
@@ -131,7 +131,7 @@ msgstr ""
 msgid "Warning"
 msgstr ""
 
-#: lib/web/email/participation.ex:140
+#: lib/web/email/participation.ex:142
 #, elixir-autogen, elixir-format
 msgid "Confirm your participation to event %{title}"
 msgstr ""
@@ -971,7 +971,7 @@ msgstr ""
 
 #: lib/web/templates/email/event_participation_approved.html.heex:98
 #: lib/web/templates/email/event_participation_approved.text.eex:11
-#: lib/web/templates/email/event_participation_confirmed.html.heex:98
+#: lib/web/templates/email/event_participation_confirmed.html.heex:140
 #: lib/web/templates/email/event_participation_confirmed.text.eex:6
 #, elixir-autogen, elixir-format
 msgid "Would you wish to update or cancel your attendance, simply access the event page through the link above and click on the Attending button."
@@ -1285,7 +1285,7 @@ msgid "This is a demonstration site to test Mobilizon."
 msgstr ""
 
 #: lib/service/metadata/actor.ex:86
-#: lib/service/metadata/actor.ex:92
+#: lib/service/metadata/actor.ex:93
 #: lib/service/metadata/instance.ex:60
 #: lib/service/metadata/instance.ex:66
 #, elixir-autogen, elixir-format
@@ -1991,11 +1991,30 @@ msgid "Participant registration date"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:113
+#: lib/web/templates/email/event_participation_confirmed.html.heex:122
 #, elixir-autogen, elixir-format
 msgid "Cancel my attendance"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:90
+#: lib/web/templates/email/event_participation_confirmed.html.heex:99
 #, elixir-autogen, elixir-format
 msgid "If you wish to cancel your participation, simply click on the link below."
 msgstr ""
+
+#: lib/web/email/admin.ex:142
+#, elixir-autogen, elixir-format
+msgid "Email configuration test for %{instance}"
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:47
+#: lib/web/templates/email/email_configuration_test.text.eex:3
+#, elixir-autogen, elixir-format
+msgid "If you received this email, the email configuration seems to be correct."
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:18
+#: lib/web/templates/email/email_configuration_test.text.eex:1
+#, elixir-autogen, elixir-format
+msgid "Well done!"
+msgstr ""
diff --git a/priv/gettext/pt/LC_MESSAGES/errors.po b/priv/gettext/pt/LC_MESSAGES/errors.po
index 84791a5b0..8bb1a2c30 100644
--- a/priv/gettext/pt/LC_MESSAGES/errors.po
+++ b/priv/gettext/pt/LC_MESSAGES/errors.po
@@ -1165,23 +1165,23 @@ msgstr ""
 msgid "Impossible to create application."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:355
+#: lib/web/controllers/application_controller.ex:353
 #, elixir-autogen, elixir-format
 msgid "Incorrect parameters sent. You need to provide at least the grant_type and client_id parameters, depending on the grant type being used."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:328
+#: lib/web/controllers/application_controller.ex:326
 #, elixir-autogen, elixir-format
 msgid "Invalid client credentials provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:336
+#: lib/web/controllers/application_controller.ex:334
 #, elixir-autogen, elixir-format
 msgid "Invalid refresh token provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:169
-#: lib/web/controllers/application_controller.ex:400
+#: lib/web/controllers/application_controller.ex:167
+#: lib/web/controllers/application_controller.ex:398
 #, elixir-autogen, elixir-format
 msgid "No application was found with this client_id"
 msgstr ""
@@ -1207,17 +1207,17 @@ msgstr ""
 msgid "Not authorized to access this %{object_type}"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:278
+#: lib/web/controllers/application_controller.ex:276
 #, elixir-autogen, elixir-format
 msgid "Please slow down the rate of your requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:266
+#: lib/web/controllers/application_controller.ex:264
 #, elixir-autogen, elixir-format
 msgid "The authorization request is still pending"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:248
+#: lib/web/controllers/application_controller.ex:246
 #, elixir-autogen, elixir-format
 msgid "The client_id provided or the device_code associated is invalid"
 msgstr ""
@@ -1227,7 +1227,7 @@ msgstr ""
 msgid "The device user code was not provided before approving the application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:303
+#: lib/web/controllers/application_controller.ex:301
 #, elixir-autogen, elixir-format
 msgid "The given device_code has expired"
 msgstr ""
@@ -1237,7 +1237,7 @@ msgstr ""
 msgid "The given redirect_uri is not in the list of allowed redirect URIs"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:157
+#: lib/web/controllers/application_controller.ex:155
 #, elixir-autogen, elixir-format
 msgid "The given scope is not in the list of the app declared scopes"
 msgstr ""
@@ -1254,22 +1254,22 @@ msgstr ""
 msgid "The given user code is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:410
+#: lib/web/controllers/application_controller.ex:408
 #, elixir-autogen, elixir-format
 msgid "The provided client_id does not match the provided code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:413
+#: lib/web/controllers/application_controller.ex:411
 #, elixir-autogen, elixir-format
 msgid "The provided client_secret is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:406
+#: lib/web/controllers/application_controller.ex:404
 #, elixir-autogen, elixir-format
 msgid "The provided code is invalid or expired"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:417
+#: lib/web/controllers/application_controller.ex:415
 #, elixir-autogen, elixir-format
 msgid "The provided scope is invalid or not included in the app declared scopes"
 msgstr ""
@@ -1279,17 +1279,17 @@ msgstr ""
 msgid "The scope parameter is not a space separated list of valid scopes"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:291
+#: lib/web/controllers/application_controller.ex:289
 #, elixir-autogen, elixir-format
 msgid "The user rejected the requested authorization"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:403
+#: lib/web/controllers/application_controller.ex:401
 #, elixir-autogen, elixir-format
 msgid "This redirect URI is not allowed"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:380
+#: lib/web/controllers/application_controller.ex:378
 #, elixir-autogen, elixir-format, fuzzy
 msgid "Token not found"
 msgstr ""
@@ -1299,27 +1299,27 @@ msgstr ""
 msgid "Too many requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:183
+#: lib/web/controllers/application_controller.ex:181
 #, elixir-autogen, elixir-format
 msgid "Unable to produce device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:372
+#: lib/web/controllers/application_controller.ex:370
 #, elixir-autogen, elixir-format
 msgid "Unable to revoke token"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:197
+#: lib/web/controllers/application_controller.ex:195
 #, elixir-autogen, elixir-format
 msgid "You need to pass both client_id and scope as parameters to obtain a device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:135
+#: lib/web/controllers/application_controller.ex:133
 #, elixir-autogen, elixir-format
 msgid "You need to provide a valid redirect_uri to autorize an application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:125
+#: lib/web/controllers/application_controller.ex:123
 #, elixir-autogen, elixir-format
 msgid "You need to specify client_id, redirect_uri, scope and state to autorize an application"
 msgstr ""
@@ -1355,7 +1355,7 @@ msgstr ""
 msgid "This instance is pending follow approval"
 msgstr ""
 
-#: lib/graphql/schema/custom/timezone.ex:23
+#: lib/graphql/schema/custom/timezone.ex:25
 #, elixir-autogen, elixir-format
 msgid "Timezone ID %{timezone} is invalid"
 msgstr ""
diff --git a/priv/gettext/pt_BR/LC_MESSAGES/default.po b/priv/gettext/pt_BR/LC_MESSAGES/default.po
index 7953fe2c4..efeb001bb 100644
--- a/priv/gettext/pt_BR/LC_MESSAGES/default.po
+++ b/priv/gettext/pt_BR/LC_MESSAGES/default.po
@@ -111,7 +111,7 @@ msgstr ""
 "mail. Você está a um clique para ativar sua conta. Se não for você favor "
 "ignorar este e-mail."
 
-#: lib/web/email/participation.ex:114
+#: lib/web/email/participation.ex:115
 #, elixir-autogen, elixir-format
 msgid "Your participation to event %{title} has been approved"
 msgstr "A sua participação no evento %{title} foi aprovada"
@@ -141,7 +141,7 @@ msgstr "Você solicitou uma nova senha para sua conta em %{instance}."
 msgid "Warning"
 msgstr "Atenção"
 
-#: lib/web/email/participation.ex:140
+#: lib/web/email/participation.ex:142
 #, elixir-autogen, elixir-format
 msgid "Confirm your participation to event %{title}"
 msgstr "Confirmar sua participação no evento %{title}"
@@ -1048,7 +1048,7 @@ msgstr ""
 
 #: lib/web/templates/email/event_participation_approved.html.heex:98
 #: lib/web/templates/email/event_participation_approved.text.eex:11
-#: lib/web/templates/email/event_participation_confirmed.html.heex:98
+#: lib/web/templates/email/event_participation_confirmed.html.heex:140
 #: lib/web/templates/email/event_participation_confirmed.text.eex:6
 #, elixir-autogen, elixir-format
 msgid "Would you wish to update or cancel your attendance, simply access the event page through the link above and click on the Attending button."
@@ -1397,7 +1397,7 @@ msgid "This is a demonstration site to test Mobilizon."
 msgstr "Este é um site de demonstração para testar a versão beta do Mobilizon."
 
 #: lib/service/metadata/actor.ex:86
-#: lib/service/metadata/actor.ex:92
+#: lib/service/metadata/actor.ex:93
 #: lib/service/metadata/instance.ex:60
 #: lib/service/metadata/instance.ex:66
 #, elixir-autogen, elixir-format
@@ -2103,11 +2103,30 @@ msgid "Participant registration date"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:113
+#: lib/web/templates/email/event_participation_confirmed.html.heex:122
 #, elixir-autogen, elixir-format
 msgid "Cancel my attendance"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:90
+#: lib/web/templates/email/event_participation_confirmed.html.heex:99
 #, elixir-autogen, elixir-format
 msgid "If you wish to cancel your participation, simply click on the link below."
 msgstr ""
+
+#: lib/web/email/admin.ex:142
+#, elixir-autogen, elixir-format
+msgid "Email configuration test for %{instance}"
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:47
+#: lib/web/templates/email/email_configuration_test.text.eex:3
+#, elixir-autogen, elixir-format
+msgid "If you received this email, the email configuration seems to be correct."
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:18
+#: lib/web/templates/email/email_configuration_test.text.eex:1
+#, elixir-autogen, elixir-format
+msgid "Well done!"
+msgstr ""
diff --git a/priv/gettext/pt_BR/LC_MESSAGES/errors.po b/priv/gettext/pt_BR/LC_MESSAGES/errors.po
index 0ce7e7cc1..7d34adb20 100644
--- a/priv/gettext/pt_BR/LC_MESSAGES/errors.po
+++ b/priv/gettext/pt_BR/LC_MESSAGES/errors.po
@@ -1172,23 +1172,23 @@ msgstr ""
 msgid "Impossible to create application."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:355
+#: lib/web/controllers/application_controller.ex:353
 #, elixir-autogen, elixir-format
 msgid "Incorrect parameters sent. You need to provide at least the grant_type and client_id parameters, depending on the grant type being used."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:328
+#: lib/web/controllers/application_controller.ex:326
 #, elixir-autogen, elixir-format
 msgid "Invalid client credentials provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:336
+#: lib/web/controllers/application_controller.ex:334
 #, elixir-autogen, elixir-format
 msgid "Invalid refresh token provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:169
-#: lib/web/controllers/application_controller.ex:400
+#: lib/web/controllers/application_controller.ex:167
+#: lib/web/controllers/application_controller.ex:398
 #, elixir-autogen, elixir-format
 msgid "No application was found with this client_id"
 msgstr ""
@@ -1214,17 +1214,17 @@ msgstr ""
 msgid "Not authorized to access this %{object_type}"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:278
+#: lib/web/controllers/application_controller.ex:276
 #, elixir-autogen, elixir-format
 msgid "Please slow down the rate of your requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:266
+#: lib/web/controllers/application_controller.ex:264
 #, elixir-autogen, elixir-format
 msgid "The authorization request is still pending"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:248
+#: lib/web/controllers/application_controller.ex:246
 #, elixir-autogen, elixir-format
 msgid "The client_id provided or the device_code associated is invalid"
 msgstr ""
@@ -1234,7 +1234,7 @@ msgstr ""
 msgid "The device user code was not provided before approving the application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:303
+#: lib/web/controllers/application_controller.ex:301
 #, elixir-autogen, elixir-format
 msgid "The given device_code has expired"
 msgstr ""
@@ -1244,7 +1244,7 @@ msgstr ""
 msgid "The given redirect_uri is not in the list of allowed redirect URIs"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:157
+#: lib/web/controllers/application_controller.ex:155
 #, elixir-autogen, elixir-format
 msgid "The given scope is not in the list of the app declared scopes"
 msgstr ""
@@ -1261,22 +1261,22 @@ msgstr ""
 msgid "The given user code is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:410
+#: lib/web/controllers/application_controller.ex:408
 #, elixir-autogen, elixir-format
 msgid "The provided client_id does not match the provided code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:413
+#: lib/web/controllers/application_controller.ex:411
 #, elixir-autogen, elixir-format
 msgid "The provided client_secret is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:406
+#: lib/web/controllers/application_controller.ex:404
 #, elixir-autogen, elixir-format
 msgid "The provided code is invalid or expired"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:417
+#: lib/web/controllers/application_controller.ex:415
 #, elixir-autogen, elixir-format
 msgid "The provided scope is invalid or not included in the app declared scopes"
 msgstr ""
@@ -1286,17 +1286,17 @@ msgstr ""
 msgid "The scope parameter is not a space separated list of valid scopes"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:291
+#: lib/web/controllers/application_controller.ex:289
 #, elixir-autogen, elixir-format
 msgid "The user rejected the requested authorization"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:403
+#: lib/web/controllers/application_controller.ex:401
 #, elixir-autogen, elixir-format
 msgid "This redirect URI is not allowed"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:380
+#: lib/web/controllers/application_controller.ex:378
 #, elixir-autogen, elixir-format, fuzzy
 msgid "Token not found"
 msgstr ""
@@ -1306,27 +1306,27 @@ msgstr ""
 msgid "Too many requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:183
+#: lib/web/controllers/application_controller.ex:181
 #, elixir-autogen, elixir-format
 msgid "Unable to produce device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:372
+#: lib/web/controllers/application_controller.ex:370
 #, elixir-autogen, elixir-format
 msgid "Unable to revoke token"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:197
+#: lib/web/controllers/application_controller.ex:195
 #, elixir-autogen, elixir-format
 msgid "You need to pass both client_id and scope as parameters to obtain a device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:135
+#: lib/web/controllers/application_controller.ex:133
 #, elixir-autogen, elixir-format
 msgid "You need to provide a valid redirect_uri to autorize an application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:125
+#: lib/web/controllers/application_controller.ex:123
 #, elixir-autogen, elixir-format
 msgid "You need to specify client_id, redirect_uri, scope and state to autorize an application"
 msgstr ""
@@ -1362,7 +1362,7 @@ msgstr ""
 msgid "This instance is pending follow approval"
 msgstr ""
 
-#: lib/graphql/schema/custom/timezone.ex:23
+#: lib/graphql/schema/custom/timezone.ex:25
 #, elixir-autogen, elixir-format
 msgid "Timezone ID %{timezone} is invalid"
 msgstr ""
diff --git a/priv/gettext/ru/LC_MESSAGES/default.po b/priv/gettext/ru/LC_MESSAGES/default.po
index 938a6d579..8a78c61af 100644
--- a/priv/gettext/ru/LC_MESSAGES/default.po
+++ b/priv/gettext/ru/LC_MESSAGES/default.po
@@ -112,7 +112,7 @@ msgstr ""
 "одном клике от его активации. Если это сделали не вы, просто проигнорируйте "
 "это письмо."
 
-#: lib/web/email/participation.ex:114
+#: lib/web/email/participation.ex:115
 #, elixir-autogen, elixir-format
 msgid "Your participation to event %{title} has been approved"
 msgstr "Ваше участие в мероприятии %{title} было одобрено"
@@ -142,7 +142,7 @@ msgstr "Вы запросили новый пароль для своей уче
 msgid "Warning"
 msgstr "Предупреждение"
 
-#: lib/web/email/participation.ex:140
+#: lib/web/email/participation.ex:142
 #, elixir-autogen, elixir-format
 msgid "Confirm your participation to event %{title}"
 msgstr "Подтвердите свое участие в мероприятии %{title}"
@@ -1182,7 +1182,7 @@ msgstr "Что будет сегодня?"
 
 #: lib/web/templates/email/event_participation_approved.html.heex:98
 #: lib/web/templates/email/event_participation_approved.text.eex:11
-#: lib/web/templates/email/event_participation_confirmed.html.heex:98
+#: lib/web/templates/email/event_participation_confirmed.html.heex:140
 #: lib/web/templates/email/event_participation_confirmed.text.eex:6
 #, elixir-autogen, elixir-format
 msgid "Would you wish to update or cancel your attendance, simply access the event page through the link above and click on the Attending button."
@@ -1603,7 +1603,7 @@ msgid "This is a demonstration site to test Mobilizon."
 msgstr "Это демонстрационная площадка для тестирования Mobilizon."
 
 #: lib/service/metadata/actor.ex:86
-#: lib/service/metadata/actor.ex:92
+#: lib/service/metadata/actor.ex:93
 #: lib/service/metadata/instance.ex:60
 #: lib/service/metadata/instance.ex:66
 #, elixir-autogen, elixir-format
@@ -2338,11 +2338,30 @@ msgid "Participant registration date"
 msgstr "Статус участника"
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:113
+#: lib/web/templates/email/event_participation_confirmed.html.heex:122
 #, elixir-autogen, elixir-format
 msgid "Cancel my attendance"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:90
+#: lib/web/templates/email/event_participation_confirmed.html.heex:99
 #, elixir-autogen, elixir-format
 msgid "If you wish to cancel your participation, simply click on the link below."
 msgstr ""
+
+#: lib/web/email/admin.ex:142
+#, elixir-autogen, elixir-format
+msgid "Email configuration test for %{instance}"
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:47
+#: lib/web/templates/email/email_configuration_test.text.eex:3
+#, elixir-autogen, elixir-format
+msgid "If you received this email, the email configuration seems to be correct."
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:18
+#: lib/web/templates/email/email_configuration_test.text.eex:1
+#, elixir-autogen, elixir-format
+msgid "Well done!"
+msgstr ""
diff --git a/priv/gettext/ru/LC_MESSAGES/errors.po b/priv/gettext/ru/LC_MESSAGES/errors.po
index 795ee4c78..1726fc443 100644
--- a/priv/gettext/ru/LC_MESSAGES/errors.po
+++ b/priv/gettext/ru/LC_MESSAGES/errors.po
@@ -1222,23 +1222,23 @@ msgstr "При сохранении отчёта произошла ошибка
 msgid "Impossible to create application."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:355
+#: lib/web/controllers/application_controller.ex:353
 #, elixir-autogen, elixir-format
 msgid "Incorrect parameters sent. You need to provide at least the grant_type and client_id parameters, depending on the grant type being used."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:328
+#: lib/web/controllers/application_controller.ex:326
 #, elixir-autogen, elixir-format
 msgid "Invalid client credentials provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:336
+#: lib/web/controllers/application_controller.ex:334
 #, elixir-autogen, elixir-format
 msgid "Invalid refresh token provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:169
-#: lib/web/controllers/application_controller.ex:400
+#: lib/web/controllers/application_controller.ex:167
+#: lib/web/controllers/application_controller.ex:398
 #, elixir-autogen, elixir-format
 msgid "No application was found with this client_id"
 msgstr ""
@@ -1264,17 +1264,17 @@ msgstr ""
 msgid "Not authorized to access this %{object_type}"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:278
+#: lib/web/controllers/application_controller.ex:276
 #, elixir-autogen, elixir-format
 msgid "Please slow down the rate of your requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:266
+#: lib/web/controllers/application_controller.ex:264
 #, elixir-autogen, elixir-format
 msgid "The authorization request is still pending"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:248
+#: lib/web/controllers/application_controller.ex:246
 #, elixir-autogen, elixir-format
 msgid "The client_id provided or the device_code associated is invalid"
 msgstr ""
@@ -1284,7 +1284,7 @@ msgstr ""
 msgid "The device user code was not provided before approving the application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:303
+#: lib/web/controllers/application_controller.ex:301
 #, elixir-autogen, elixir-format
 msgid "The given device_code has expired"
 msgstr ""
@@ -1294,7 +1294,7 @@ msgstr ""
 msgid "The given redirect_uri is not in the list of allowed redirect URIs"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:157
+#: lib/web/controllers/application_controller.ex:155
 #, elixir-autogen, elixir-format
 msgid "The given scope is not in the list of the app declared scopes"
 msgstr ""
@@ -1311,22 +1311,22 @@ msgstr ""
 msgid "The given user code is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:410
+#: lib/web/controllers/application_controller.ex:408
 #, elixir-autogen, elixir-format
 msgid "The provided client_id does not match the provided code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:413
+#: lib/web/controllers/application_controller.ex:411
 #, elixir-autogen, elixir-format
 msgid "The provided client_secret is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:406
+#: lib/web/controllers/application_controller.ex:404
 #, elixir-autogen, elixir-format
 msgid "The provided code is invalid or expired"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:417
+#: lib/web/controllers/application_controller.ex:415
 #, elixir-autogen, elixir-format
 msgid "The provided scope is invalid or not included in the app declared scopes"
 msgstr ""
@@ -1336,17 +1336,17 @@ msgstr ""
 msgid "The scope parameter is not a space separated list of valid scopes"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:291
+#: lib/web/controllers/application_controller.ex:289
 #, elixir-autogen, elixir-format
 msgid "The user rejected the requested authorization"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:403
+#: lib/web/controllers/application_controller.ex:401
 #, elixir-autogen, elixir-format
 msgid "This redirect URI is not allowed"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:380
+#: lib/web/controllers/application_controller.ex:378
 #, elixir-autogen, elixir-format, fuzzy
 msgid "Token not found"
 msgstr "Мероприятие не найдено"
@@ -1356,27 +1356,27 @@ msgstr "Мероприятие не найдено"
 msgid "Too many requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:183
+#: lib/web/controllers/application_controller.ex:181
 #, elixir-autogen, elixir-format
 msgid "Unable to produce device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:372
+#: lib/web/controllers/application_controller.ex:370
 #, elixir-autogen, elixir-format
 msgid "Unable to revoke token"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:197
+#: lib/web/controllers/application_controller.ex:195
 #, elixir-autogen, elixir-format
 msgid "You need to pass both client_id and scope as parameters to obtain a device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:135
+#: lib/web/controllers/application_controller.ex:133
 #, elixir-autogen, elixir-format
 msgid "You need to provide a valid redirect_uri to autorize an application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:125
+#: lib/web/controllers/application_controller.ex:123
 #, elixir-autogen, elixir-format
 msgid "You need to specify client_id, redirect_uri, scope and state to autorize an application"
 msgstr ""
@@ -1412,7 +1412,7 @@ msgstr ""
 msgid "This instance is pending follow approval"
 msgstr ""
 
-#: lib/graphql/schema/custom/timezone.ex:23
+#: lib/graphql/schema/custom/timezone.ex:25
 #, elixir-autogen, elixir-format
 msgid "Timezone ID %{timezone} is invalid"
 msgstr ""
diff --git a/priv/gettext/sv/LC_MESSAGES/default.po b/priv/gettext/sv/LC_MESSAGES/default.po
index 6b32d663e..36241db40 100644
--- a/priv/gettext/sv/LC_MESSAGES/default.po
+++ b/priv/gettext/sv/LC_MESSAGES/default.po
@@ -112,7 +112,7 @@ msgstr ""
 "bara ett klick för att aktivera den. Om det inte var du som gjorde det kan "
 "du strunta i det här meddelandet."
 
-#: lib/web/email/participation.ex:114
+#: lib/web/email/participation.ex:115
 #, elixir-autogen, elixir-format
 msgid "Your participation to event %{title} has been approved"
 msgstr "Din förfrågan om att få delta i evenemanget %{title} har godkännts"
@@ -142,7 +142,7 @@ msgstr "Du har bett om ett nytt lösenord för ditt konto på %{instance}."
 msgid "Warning"
 msgstr "Varning"
 
-#: lib/web/email/participation.ex:140
+#: lib/web/email/participation.ex:142
 #, elixir-autogen, elixir-format
 msgid "Confirm your participation to event %{title}"
 msgstr "Bekräfta ditt deltagande i eventet %{title}"
@@ -1028,7 +1028,7 @@ msgstr ""
 
 #: lib/web/templates/email/event_participation_approved.html.heex:98
 #: lib/web/templates/email/event_participation_approved.text.eex:11
-#: lib/web/templates/email/event_participation_confirmed.html.heex:98
+#: lib/web/templates/email/event_participation_confirmed.html.heex:140
 #: lib/web/templates/email/event_participation_confirmed.text.eex:6
 #, elixir-autogen, elixir-format
 msgid "Would you wish to update or cancel your attendance, simply access the event page through the link above and click on the Attending button."
@@ -1345,7 +1345,7 @@ msgstr ""
 "Detta är en webbplats för att visa upp och testa beta-versionen av Mobilizon."
 
 #: lib/service/metadata/actor.ex:86
-#: lib/service/metadata/actor.ex:92
+#: lib/service/metadata/actor.ex:93
 #: lib/service/metadata/instance.ex:60
 #: lib/service/metadata/instance.ex:66
 #, elixir-autogen, elixir-format
@@ -2051,11 +2051,30 @@ msgid "Participant registration date"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:113
+#: lib/web/templates/email/event_participation_confirmed.html.heex:122
 #, elixir-autogen, elixir-format
 msgid "Cancel my attendance"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:90
+#: lib/web/templates/email/event_participation_confirmed.html.heex:99
 #, elixir-autogen, elixir-format
 msgid "If you wish to cancel your participation, simply click on the link below."
 msgstr ""
+
+#: lib/web/email/admin.ex:142
+#, elixir-autogen, elixir-format
+msgid "Email configuration test for %{instance}"
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:47
+#: lib/web/templates/email/email_configuration_test.text.eex:3
+#, elixir-autogen, elixir-format
+msgid "If you received this email, the email configuration seems to be correct."
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:18
+#: lib/web/templates/email/email_configuration_test.text.eex:1
+#, elixir-autogen, elixir-format
+msgid "Well done!"
+msgstr ""
diff --git a/priv/gettext/sv/LC_MESSAGES/errors.po b/priv/gettext/sv/LC_MESSAGES/errors.po
index 4cd3c5f09..062ae6a27 100644
--- a/priv/gettext/sv/LC_MESSAGES/errors.po
+++ b/priv/gettext/sv/LC_MESSAGES/errors.po
@@ -1177,23 +1177,23 @@ msgstr "Fel vid sparande av rapport"
 msgid "Impossible to create application."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:355
+#: lib/web/controllers/application_controller.ex:353
 #, elixir-autogen, elixir-format
 msgid "Incorrect parameters sent. You need to provide at least the grant_type and client_id parameters, depending on the grant type being used."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:328
+#: lib/web/controllers/application_controller.ex:326
 #, elixir-autogen, elixir-format
 msgid "Invalid client credentials provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:336
+#: lib/web/controllers/application_controller.ex:334
 #, elixir-autogen, elixir-format
 msgid "Invalid refresh token provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:169
-#: lib/web/controllers/application_controller.ex:400
+#: lib/web/controllers/application_controller.ex:167
+#: lib/web/controllers/application_controller.ex:398
 #, elixir-autogen, elixir-format
 msgid "No application was found with this client_id"
 msgstr ""
@@ -1219,17 +1219,17 @@ msgstr ""
 msgid "Not authorized to access this %{object_type}"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:278
+#: lib/web/controllers/application_controller.ex:276
 #, elixir-autogen, elixir-format
 msgid "Please slow down the rate of your requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:266
+#: lib/web/controllers/application_controller.ex:264
 #, elixir-autogen, elixir-format
 msgid "The authorization request is still pending"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:248
+#: lib/web/controllers/application_controller.ex:246
 #, elixir-autogen, elixir-format
 msgid "The client_id provided or the device_code associated is invalid"
 msgstr ""
@@ -1239,7 +1239,7 @@ msgstr ""
 msgid "The device user code was not provided before approving the application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:303
+#: lib/web/controllers/application_controller.ex:301
 #, elixir-autogen, elixir-format
 msgid "The given device_code has expired"
 msgstr ""
@@ -1249,7 +1249,7 @@ msgstr ""
 msgid "The given redirect_uri is not in the list of allowed redirect URIs"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:157
+#: lib/web/controllers/application_controller.ex:155
 #, elixir-autogen, elixir-format
 msgid "The given scope is not in the list of the app declared scopes"
 msgstr ""
@@ -1266,22 +1266,22 @@ msgstr ""
 msgid "The given user code is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:410
+#: lib/web/controllers/application_controller.ex:408
 #, elixir-autogen, elixir-format
 msgid "The provided client_id does not match the provided code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:413
+#: lib/web/controllers/application_controller.ex:411
 #, elixir-autogen, elixir-format
 msgid "The provided client_secret is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:406
+#: lib/web/controllers/application_controller.ex:404
 #, elixir-autogen, elixir-format
 msgid "The provided code is invalid or expired"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:417
+#: lib/web/controllers/application_controller.ex:415
 #, elixir-autogen, elixir-format
 msgid "The provided scope is invalid or not included in the app declared scopes"
 msgstr ""
@@ -1291,17 +1291,17 @@ msgstr ""
 msgid "The scope parameter is not a space separated list of valid scopes"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:291
+#: lib/web/controllers/application_controller.ex:289
 #, elixir-autogen, elixir-format
 msgid "The user rejected the requested authorization"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:403
+#: lib/web/controllers/application_controller.ex:401
 #, elixir-autogen, elixir-format
 msgid "This redirect URI is not allowed"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:380
+#: lib/web/controllers/application_controller.ex:378
 #, elixir-autogen, elixir-format, fuzzy
 msgid "Token not found"
 msgstr ""
@@ -1311,27 +1311,27 @@ msgstr ""
 msgid "Too many requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:183
+#: lib/web/controllers/application_controller.ex:181
 #, elixir-autogen, elixir-format
 msgid "Unable to produce device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:372
+#: lib/web/controllers/application_controller.ex:370
 #, elixir-autogen, elixir-format
 msgid "Unable to revoke token"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:197
+#: lib/web/controllers/application_controller.ex:195
 #, elixir-autogen, elixir-format
 msgid "You need to pass both client_id and scope as parameters to obtain a device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:135
+#: lib/web/controllers/application_controller.ex:133
 #, elixir-autogen, elixir-format
 msgid "You need to provide a valid redirect_uri to autorize an application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:125
+#: lib/web/controllers/application_controller.ex:123
 #, elixir-autogen, elixir-format
 msgid "You need to specify client_id, redirect_uri, scope and state to autorize an application"
 msgstr ""
@@ -1367,7 +1367,7 @@ msgstr ""
 msgid "This instance is pending follow approval"
 msgstr ""
 
-#: lib/graphql/schema/custom/timezone.ex:23
+#: lib/graphql/schema/custom/timezone.ex:25
 #, elixir-autogen, elixir-format
 msgid "Timezone ID %{timezone} is invalid"
 msgstr ""
diff --git a/priv/gettext/zh_Hant/LC_MESSAGES/default.po b/priv/gettext/zh_Hant/LC_MESSAGES/default.po
index f5f774094..75a7da65e 100644
--- a/priv/gettext/zh_Hant/LC_MESSAGES/default.po
+++ b/priv/gettext/zh_Hant/LC_MESSAGES/default.po
@@ -99,7 +99,7 @@ msgstr ""
 msgid "You created an account on %{host} with this email address. You are one click away from activating it. If this wasn't you, please ignore this email."
 msgstr ""
 
-#: lib/web/email/participation.ex:114
+#: lib/web/email/participation.ex:115
 #, elixir-autogen, elixir-format
 msgid "Your participation to event %{title} has been approved"
 msgstr ""
@@ -129,7 +129,7 @@ msgstr ""
 msgid "Warning"
 msgstr ""
 
-#: lib/web/email/participation.ex:140
+#: lib/web/email/participation.ex:142
 #, elixir-autogen, elixir-format
 msgid "Confirm your participation to event %{title}"
 msgstr ""
@@ -963,7 +963,7 @@ msgstr ""
 
 #: lib/web/templates/email/event_participation_approved.html.heex:98
 #: lib/web/templates/email/event_participation_approved.text.eex:11
-#: lib/web/templates/email/event_participation_confirmed.html.heex:98
+#: lib/web/templates/email/event_participation_confirmed.html.heex:140
 #: lib/web/templates/email/event_participation_confirmed.text.eex:6
 #, elixir-autogen, elixir-format
 msgid "Would you wish to update or cancel your attendance, simply access the event page through the link above and click on the Attending button."
@@ -1277,7 +1277,7 @@ msgid "This is a demonstration site to test Mobilizon."
 msgstr ""
 
 #: lib/service/metadata/actor.ex:86
-#: lib/service/metadata/actor.ex:92
+#: lib/service/metadata/actor.ex:93
 #: lib/service/metadata/instance.ex:60
 #: lib/service/metadata/instance.ex:66
 #, elixir-autogen, elixir-format
@@ -1982,11 +1982,30 @@ msgid "Participant registration date"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:113
+#: lib/web/templates/email/event_participation_confirmed.html.heex:122
 #, elixir-autogen, elixir-format
 msgid "Cancel my attendance"
 msgstr ""
 
 #: lib/web/templates/email/anonymous_participation_confirmation.html.heex:90
+#: lib/web/templates/email/event_participation_confirmed.html.heex:99
 #, elixir-autogen, elixir-format
 msgid "If you wish to cancel your participation, simply click on the link below."
 msgstr ""
+
+#: lib/web/email/admin.ex:142
+#, elixir-autogen, elixir-format
+msgid "Email configuration test for %{instance}"
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:47
+#: lib/web/templates/email/email_configuration_test.text.eex:3
+#, elixir-autogen, elixir-format
+msgid "If you received this email, the email configuration seems to be correct."
+msgstr ""
+
+#: lib/web/templates/email/email_configuration_test.html.heex:18
+#: lib/web/templates/email/email_configuration_test.text.eex:1
+#, elixir-autogen, elixir-format
+msgid "Well done!"
+msgstr ""
diff --git a/priv/gettext/zh_Hant/LC_MESSAGES/errors.po b/priv/gettext/zh_Hant/LC_MESSAGES/errors.po
index 80afd7e67..f053fd21d 100644
--- a/priv/gettext/zh_Hant/LC_MESSAGES/errors.po
+++ b/priv/gettext/zh_Hant/LC_MESSAGES/errors.po
@@ -1159,23 +1159,23 @@ msgstr ""
 msgid "Impossible to create application."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:355
+#: lib/web/controllers/application_controller.ex:353
 #, elixir-autogen, elixir-format
 msgid "Incorrect parameters sent. You need to provide at least the grant_type and client_id parameters, depending on the grant type being used."
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:328
+#: lib/web/controllers/application_controller.ex:326
 #, elixir-autogen, elixir-format
 msgid "Invalid client credentials provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:336
+#: lib/web/controllers/application_controller.ex:334
 #, elixir-autogen, elixir-format
 msgid "Invalid refresh token provided"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:169
-#: lib/web/controllers/application_controller.ex:400
+#: lib/web/controllers/application_controller.ex:167
+#: lib/web/controllers/application_controller.ex:398
 #, elixir-autogen, elixir-format
 msgid "No application was found with this client_id"
 msgstr ""
@@ -1201,17 +1201,17 @@ msgstr ""
 msgid "Not authorized to access this %{object_type}"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:278
+#: lib/web/controllers/application_controller.ex:276
 #, elixir-autogen, elixir-format
 msgid "Please slow down the rate of your requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:266
+#: lib/web/controllers/application_controller.ex:264
 #, elixir-autogen, elixir-format
 msgid "The authorization request is still pending"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:248
+#: lib/web/controllers/application_controller.ex:246
 #, elixir-autogen, elixir-format
 msgid "The client_id provided or the device_code associated is invalid"
 msgstr ""
@@ -1221,7 +1221,7 @@ msgstr ""
 msgid "The device user code was not provided before approving the application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:303
+#: lib/web/controllers/application_controller.ex:301
 #, elixir-autogen, elixir-format
 msgid "The given device_code has expired"
 msgstr ""
@@ -1231,7 +1231,7 @@ msgstr ""
 msgid "The given redirect_uri is not in the list of allowed redirect URIs"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:157
+#: lib/web/controllers/application_controller.ex:155
 #, elixir-autogen, elixir-format
 msgid "The given scope is not in the list of the app declared scopes"
 msgstr ""
@@ -1248,22 +1248,22 @@ msgstr ""
 msgid "The given user code is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:410
+#: lib/web/controllers/application_controller.ex:408
 #, elixir-autogen, elixir-format
 msgid "The provided client_id does not match the provided code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:413
+#: lib/web/controllers/application_controller.ex:411
 #, elixir-autogen, elixir-format
 msgid "The provided client_secret is invalid"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:406
+#: lib/web/controllers/application_controller.ex:404
 #, elixir-autogen, elixir-format
 msgid "The provided code is invalid or expired"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:417
+#: lib/web/controllers/application_controller.ex:415
 #, elixir-autogen, elixir-format
 msgid "The provided scope is invalid or not included in the app declared scopes"
 msgstr ""
@@ -1273,17 +1273,17 @@ msgstr ""
 msgid "The scope parameter is not a space separated list of valid scopes"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:291
+#: lib/web/controllers/application_controller.ex:289
 #, elixir-autogen, elixir-format
 msgid "The user rejected the requested authorization"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:403
+#: lib/web/controllers/application_controller.ex:401
 #, elixir-autogen, elixir-format
 msgid "This redirect URI is not allowed"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:380
+#: lib/web/controllers/application_controller.ex:378
 #, elixir-autogen, elixir-format, fuzzy
 msgid "Token not found"
 msgstr ""
@@ -1293,27 +1293,27 @@ msgstr ""
 msgid "Too many requests"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:183
+#: lib/web/controllers/application_controller.ex:181
 #, elixir-autogen, elixir-format
 msgid "Unable to produce device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:372
+#: lib/web/controllers/application_controller.ex:370
 #, elixir-autogen, elixir-format
 msgid "Unable to revoke token"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:197
+#: lib/web/controllers/application_controller.ex:195
 #, elixir-autogen, elixir-format
 msgid "You need to pass both client_id and scope as parameters to obtain a device code"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:135
+#: lib/web/controllers/application_controller.ex:133
 #, elixir-autogen, elixir-format
 msgid "You need to provide a valid redirect_uri to autorize an application"
 msgstr ""
 
-#: lib/web/controllers/application_controller.ex:125
+#: lib/web/controllers/application_controller.ex:123
 #, elixir-autogen, elixir-format
 msgid "You need to specify client_id, redirect_uri, scope and state to autorize an application"
 msgstr ""
@@ -1349,7 +1349,7 @@ msgstr ""
 msgid "This instance is pending follow approval"
 msgstr ""
 
-#: lib/graphql/schema/custom/timezone.ex:23
+#: lib/graphql/schema/custom/timezone.ex:25
 #, elixir-autogen, elixir-format
 msgid "Timezone ID %{timezone} is invalid"
 msgstr ""
diff --git a/src/components/Event/FullAddressAutoComplete.vue b/src/components/Event/FullAddressAutoComplete.vue
index a9f687f08..fd2d5af78 100644
--- a/src/components/Event/FullAddressAutoComplete.vue
+++ b/src/components/Event/FullAddressAutoComplete.vue
@@ -347,7 +347,7 @@ const asyncData = async (query: string): Promise<void> => {
 
     const result =
       (await searchAddressLoad(undefined, queryVars)) ||
-      (await searchAddressRefetch(queryVars))?.data
+      (await searchAddressRefetch(queryVars))?.data;
 
     if (!result) {
       isFetching.value = false;
diff --git a/src/components/Group/GroupCard.vue b/src/components/Group/GroupCard.vue
index 7ef9c2ed3..9b5151fc4 100644
--- a/src/components/Group/GroupCard.vue
+++ b/src/components/Group/GroupCard.vue
@@ -40,7 +40,7 @@
       <div
         class="mb-2 line-clamp-3"
         dir="auto"
-        v-html="saneSummary"
+        v-html="group.summary"
         v-if="showSummary"
       />
       <div>
@@ -91,7 +91,6 @@ import { addressFullName } from "@/types/address.model";
 import { useI18n } from "vue-i18n";
 import AccountGroup from "vue-material-design-icons/AccountGroup.vue";
 import Account from "vue-material-design-icons/Account.vue";
-import { htmlToText } from "@/utils/html";
 import { computed } from "vue";
 import LinkOrRouterLink from "../core/LinkOrRouterLink.vue";
 
@@ -108,8 +107,6 @@ const props = withDefaults(
 
 const { t } = useI18n({ useScope: "global" });
 
-const saneSummary = computed(() => htmlToText(props.group.summary ?? ""));
-
 const isInternal = computed(() => {
   return props.isRemoteGroup && props.isLoggedIn === false;
 });
diff --git a/src/components/Group/GroupMemberCard.vue b/src/components/Group/GroupMemberCard.vue
index 3693e38f9..8a3aa3f54 100644
--- a/src/components/Group/GroupMemberCard.vue
+++ b/src/components/Group/GroupMemberCard.vue
@@ -60,9 +60,9 @@
           </div>
         </div>
         <div
-          class="mt-3 prose dark:prose-invert lg:prose-xl line-clamp-2"
+          class="mt-3 prose dark:prose-invert lg:prose-xl prose-p:m-0 line-clamp-2"
           v-if="member.parent.summary"
-          v-html="htmlToText(member.parent.summary)"
+          v-html="member.parent.summary"
         />
       </div>
       <div>
@@ -95,7 +95,6 @@ import DotsHorizontal from "vue-material-design-icons/DotsHorizontal.vue";
 import AccountGroup from "vue-material-design-icons/AccountGroup.vue";
 import AccountCircle from "vue-material-design-icons/AccountCircle.vue";
 import Tag from "@/components/TagElement.vue";
-import { htmlToText } from "@/utils/html";
 import { useI18n } from "vue-i18n";
 
 defineProps<{
diff --git a/src/components/Report/ReportCard.vue b/src/components/Report/ReportCard.vue
index 4166acd6f..56b99b87b 100644
--- a/src/components/Report/ReportCard.vue
+++ b/src/components/Report/ReportCard.vue
@@ -63,7 +63,9 @@
           {{ t("Reported by an unknown actor") }}
         </span>
       </div>
-      <div class="" v-if="report.content" v-html="report.content" />
+      <div class="line-clamp-1" v-if="report.content">
+        {{ report.content }}
+      </div>
     </div>
   </div>
 </template>
diff --git a/src/filters/index.ts b/src/filters/index.ts
index 941d69c7e..8d02384b6 100644
--- a/src/filters/index.ts
+++ b/src/filters/index.ts
@@ -1,4 +1,3 @@
-import nl2br from "@/filters/utils";
 import {
   formatDateString,
   formatTimeString,
@@ -11,6 +10,5 @@ export default {
     vue.filter("formatDateString", formatDateString);
     vue.filter("formatTimeString", formatTimeString);
     vue.filter("formatDateTimeString", formatDateTimeString);
-    vue.filter("nl2br", nl2br);
   },
 };
diff --git a/src/filters/utils.ts b/src/filters/utils.ts
deleted file mode 100644
index 58e91df6d..000000000
--- a/src/filters/utils.ts
+++ /dev/null
@@ -1,9 +0,0 @@
-/**
- * New Line to <br>
- *
- * @param {string} str Input text
- * @return {string} Filtered text
- */
-export default function nl2br(str: string): string {
-  return `${str}`.replace(/([^>\r\n]?)(\r\n|\n\r|\r|\n)/g, "$1<br>");
-}
diff --git a/src/router/conversation.ts b/src/router/conversation.ts
index f5b3dfc85..27c0ef187 100644
--- a/src/router/conversation.ts
+++ b/src/router/conversation.ts
@@ -4,7 +4,7 @@ import { i18n } from "@/utils/i18n";
 const t = i18n.global.t;
 
 export enum ConversationRouteName {
-  CONVERSATION_LIST = "DISCUSSION_LIST",
+  CONVERSATION_LIST = "CONVERSATION_LIST",
   CONVERSATION = "CONVERSATION",
 }
 
diff --git a/src/utils/html.ts b/src/utils/html.ts
index e1baac0b8..02b8763b4 100644
--- a/src/utils/html.ts
+++ b/src/utils/html.ts
@@ -1,16 +1,3 @@
-export function nl2br(text: string): string {
-  return text.replace(/(?:\r\n|\r|\n)/g, "<br>");
-}
-
-export function htmlToText(html: string) {
-  const template = document.createElement("template");
-  const trimmedHTML = html.trim();
-  template.innerHTML = trimmedHTML;
-  const text = template.content.textContent;
-  template.remove();
-  return text;
-}
-
 export const getValueFromMeta = (name: string): string | null => {
   const element = document.querySelector(`meta[name="${name}"]`);
   if (element && element.getAttribute("content")) {
diff --git a/src/views/Event/EventView.vue b/src/views/Event/EventView.vue
index ab32c301e..d87198c40 100755
--- a/src/views/Event/EventView.vue
+++ b/src/views/Event/EventView.vue
@@ -613,8 +613,8 @@ const organizerDomain = computed((): string | undefined => {
 });
 
 const nonPassedRelatedEvents = computed((): IEvent[] | undefined => {
-  let relatedEvents = event.value?.relatedEvents;
-  
+  const relatedEvents = event.value?.relatedEvents;
+
   return relatedEvents?.filter((relatedEvent: IEvent) => {
     const endsOn = relatedEvent.endsOn
       ? new Date(relatedEvent.endsOn)
diff --git a/src/views/Event/ParticipantsView.vue b/src/views/Event/ParticipantsView.vue
index 7624f9202..e5f33aee0 100644
--- a/src/views/Event/ParticipantsView.vue
+++ b/src/views/Event/ParticipantsView.vue
@@ -189,16 +189,15 @@
           <p v-else>
             {{ props.row.metadata.message }}
           </p>
-          <button
-            type="button"
-            class="button is-text"
+          <o-button
+            variant="primary"
             v-if="props.row.metadata.message.length > MESSAGE_ELLIPSIS_LENGTH"
             @click.stop="toggleQueueDetails(props.row)"
           >
             {{
               openDetailedRows[props.row.id] ? t("View less") : t("View more")
             }}
-          </button>
+          </o-button>
         </div>
         <p v-else class="has-text-grey-dark">
           {{ t("No message") }}
@@ -212,7 +211,9 @@
         </span>
       </o-table-column>
       <template #detail="props">
-        <article v-html="nl2br(props.row.metadata.message)" />
+        <p>
+          {{ props.row.metadata.message }}
+        </p>
       </template>
       <template #empty>
         <EmptyContent icon="account-circle" :inline="true">
@@ -265,7 +266,6 @@ import {
   UPDATE_PARTICIPANT,
 } from "@/graphql/event";
 import { usernameWithDomain } from "@/types/actor";
-import { nl2br } from "@/utils/html";
 import { asyncForEach } from "@/utils/asyncForEach";
 import RouteName from "@/router/name";
 import { useCurrentActorClient } from "@/composition/apollo/actor";
diff --git a/src/views/Group/GroupSettings.vue b/src/views/Group/GroupSettings.vue
index d32d32cb5..64a0d5c70 100644
--- a/src/views/Group/GroupSettings.vue
+++ b/src/views/Group/GroupSettings.vue
@@ -261,7 +261,7 @@ const copyURL = async (): Promise<void> => {
 
 onGroupResult(async ({ data }) => {
   if (!data) return;
-  editableGroup.value = data.group;
+  editableGroup.value = { ...data.group };
   try {
     avatarFile.value = await buildFileFromIMedia(editableGroup.value?.avatar);
     bannerFile.value = await buildFileFromIMedia(editableGroup.value?.banner);
diff --git a/src/views/Moderation/ReportView.vue b/src/views/Moderation/ReportView.vue
index 615c50686..0574dcf0a 100644
--- a/src/views/Moderation/ReportView.vue
+++ b/src/views/Moderation/ReportView.vue
@@ -216,11 +216,9 @@
           </div>
           <p v-else>{{ t("Unknown actor") }}</p>
         </div>
-        <div
-          class="prose dark:prose-invert"
-          v-if="report.content"
-          v-html="nl2br(report.content)"
-        />
+        <div class="prose dark:prose-invert" v-if="report.content">
+          {{ report.content }}
+        </div>
         <p v-else>{{ t("No comment") }}</p>
       </div>
     </section>
@@ -407,7 +405,6 @@ import {
 } from "@/types/actor";
 import { DELETE_EVENT } from "@/graphql/event";
 import uniq from "lodash/uniq";
-import { nl2br } from "@/utils/html";
 import { DELETE_COMMENT } from "@/graphql/comment";
 import { IComment } from "@/types/comment.model";
 import { ActorType, AntiSpamFeedback, ReportStatusEnum } from "@/types/enums";
diff --git a/test/federation/activity_pub/types/actors_test.exs b/test/federation/activity_pub/types/actors_test.exs
new file mode 100644
index 000000000..113ca1eb4
--- /dev/null
+++ b/test/federation/activity_pub/types/actors_test.exs
@@ -0,0 +1,92 @@
+defmodule Mobilizon.Federation.ActivityPub.Types.ActorsTest do
+  use Mobilizon.DataCase
+
+  import Mobilizon.Factory
+
+  alias Mobilizon.Actors.Actor
+  alias Mobilizon.Federation.ActivityPub.Types.Actors
+
+  describe "group creation" do
+    test "with no public key" do
+      %Actor{id: creator_actor_id} = insert(:actor)
+
+      assert_raise RuntimeError, "No publickey found in private keys", fn ->
+        Actors.create(
+          %{
+            preferred_username: "hello",
+            summary: "hi",
+            url: "https://some-unique-url.test/@actor",
+            keys: "yool",
+            creator_actor_id: creator_actor_id
+          },
+          %{}
+        )
+      end
+    end
+
+    test "with XSS" do
+      %Actor{id: creator_actor_id} = insert(:actor)
+
+      preferred_username =
+        "hello <meta http-equiv=\"refresh\" content=\"0; url=http://example.com/\" />"
+
+      summary =
+        "<p>Some text before <meta http-equiv=\"refresh\" content=\"0; url=http://example.com/\" /></p>"
+
+      assert {:ok, %Actor{preferred_username: saved_preferred_username, summary: saved_summary},
+              _} =
+               Actors.create(
+                 %{
+                   preferred_username: preferred_username,
+                   summary: summary,
+                   url: "https://some-unique-url.test/@actor",
+                   creator_actor_id: creator_actor_id,
+                   type: :Group
+                 },
+                 %{}
+               )
+
+      assert saved_preferred_username == "hello"
+      assert saved_summary == "<p>Some text before </p>"
+
+      preferred_username =
+        "<<img src=''/>meta http-equiv=\"refresh\" content=\"0; url=http://example.com/\" />"
+
+      summary =
+        "<<img src=''/>meta http-equiv=\"refresh\" content=\"0; url=http://example.com/\" />"
+
+      assert {:error, %Ecto.Changeset{errors: errors}} =
+               Actors.create(
+                 %{
+                   preferred_username: preferred_username,
+                   summary: summary,
+                   url: "https://some-unique-url.test/@actor",
+                   creator_actor_id: creator_actor_id,
+                   type: :Group
+                 },
+                 %{}
+               )
+
+      assert errors === [
+               preferred_username:
+                 {"Username must only contain alphanumeric lowercased characters and underscores.",
+                  []}
+             ]
+
+      assert {:ok, %Actor{summary: saved_summary}, _} =
+               Actors.create(
+                 %{
+                   preferred_username: "hello184",
+                   summary: summary,
+                   url: "https://some-unique-url.test/@actor",
+                   creator_actor_id: creator_actor_id,
+                   type: :Group
+                 },
+                 %{}
+               )
+
+      assert saved_summary ==
+               "&lt;<img src=\"\"/>meta http-equiv=&quot;refresh&quot; content=&quot;0; url=http://example.com/&quot; /&gt;"
+    end
+  end
+end
diff --git a/test/federation/activity_pub/types/reports_test.exs b/test/federation/activity_pub/types/reports_test.exs
new file mode 100644
index 000000000..8c17fe731
--- /dev/null
+++ b/test/federation/activity_pub/types/reports_test.exs
@@ -0,0 +1,41 @@
+defmodule Mobilizon.Federation.ActivityPub.Types.ReportsTest do
+  use Mobilizon.DataCase
+
+  import Mobilizon.Factory
+
+  alias Mobilizon.Actors.Actor
+  alias Mobilizon.Federation.ActivityPub.Types.Reports
+  alias Mobilizon.Reports.Report
+
+  describe "report creation" do
+    test "with XSS" do
+      %Actor{id: reporter_id} = insert(:actor)
+      %Actor{id: reported_id} = insert(:actor)
+
+      content =
+        "hello <meta http-equiv=\"refresh\" content=\"0; url=http://example.com/\" />"
+
+      assert {:ok, %Report{content: saved_content}, _} =
+               Reports.flag(%{
+                 reporter_id: reporter_id,
+                 reported_id: reported_id,
+                 content: content
+               })
+
+      assert saved_content == "hello "
+
+      content =
+        "<<img src=''/>meta http-equiv=\"refresh\" content=\"0; url=http://example.com/\" />"
+
+      assert {:ok, %Report{content: saved_content}, _} =
+               Reports.flag(%{
+                 reporter_id: reporter_id,
+                 reported_id: reported_id,
+                 content: content
+               })
+
+      assert saved_content ==
+               "<meta http-equiv=\"refresh\" content=\"0; url=http://example.com/\" />"
+    end
+  end
+end
diff --git a/test/graphql/resolvers/resource_test.exs b/test/graphql/resolvers/resource_test.exs
index 4948c5b3c..4f23e67d1 100644
--- a/test/graphql/resolvers/resource_test.exs
+++ b/test/graphql/resolvers/resource_test.exs
@@ -283,7 +283,7 @@ defmodule Mobilizon.GraphQL.Resolvers.ResourceTest do
           }
         )
 
-      assert is_nil(res["errors"])
+      assert res["errors"] == nil
 
       assert res["data"]["resource"]["path"] == "/"
       assert String.starts_with?(res["data"]["resource"]["id"], "root_")