diff --git a/CHANGELOG.md b/CHANGELOG.md
index 249c044ac..ebd0c391c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,18 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## 1.0.6 - 04-02-2020
+
+### Added
+
+- Handle frontend errors nicely when mounting components
+
+### Fixed
+
+- Fixed displaying a remote event when organizer is a group
+- Fixed sending events & posts to group followers
+- Fixed redirection after deleting an event
+
 ## 1.0.5 - 27-01-2020
 
 ### Fixed
diff --git a/js/package.json b/js/package.json
index 9aea87136..f0e91abb3 100644
--- a/js/package.json
+++ b/js/package.json
@@ -1,6 +1,6 @@
 {
   "name": "mobilizon",
-  "version": "1.0.5",
+  "version": "1.0.6",
   "private": true,
   "scripts": {
     "serve": "vue-cli-service serve",
diff --git a/js/src/App.vue b/js/src/App.vue
index a0b85b0f8..b8c29a98a 100644
--- a/js/src/App.vue
+++ b/js/src/App.vue
@@ -20,7 +20,9 @@
         </p>
       </b-message>
     </div>
-    <main>
+    <error v-if="error" :error="error" />
+
+    <main v-else>
       <transition name="fade" mode="out-in">
         <router-view />
       </transition>
@@ -57,6 +59,8 @@ import { ICurrentUser } from "./types/current-user.model";
   components: {
     Logo,
     NavBar,
+    error: () =>
+      import(/* webpackChunkName: "editor" */ "./components/Error.vue"),
     "mobilizon-footer": Footer,
   },
 })
@@ -65,12 +69,18 @@ export default class App extends Vue {
 
   currentUser!: ICurrentUser;
 
+  error: Error | null = null;
+
   async created(): Promise<void> {
     if (await this.initializeCurrentUser()) {
       await initializeCurrentActor(this.$apollo.provider.defaultClient);
     }
   }
 
+  errorCaptured(error: Error): void {
+    this.error = error;
+  }
+
   private async initializeCurrentUser() {
     const userId = localStorage.getItem(AUTH_USER_ID);
     const userEmail = localStorage.getItem(AUTH_USER_EMAIL);
diff --git a/js/src/components/About/InstanceContactLink.vue b/js/src/components/About/InstanceContactLink.vue
new file mode 100644
index 000000000..80d17ecea
--- /dev/null
+++ b/js/src/components/About/InstanceContactLink.vue
@@ -0,0 +1,52 @@
+<template>
+  <p>
+    <a :title="contact" v-if="configLink" :href="configLink.uri">{{
+      configLink.text
+    }}</a>
+    <span v-else-if="contact">{{ contact }}</span>
+    <span v-else>{{ $t("contact uninformed") }}</span>
+  </p>
+</template>
+<script lang="ts">
+import { Component, Prop, Vue } from "vue-property-decorator";
+
+@Component
+export default class InstanceContactLink extends Vue {
+  @Prop({ required: true, type: String }) contact!: string;
+
+  get configLink(): { uri: string; text: string } | null {
+    if (!this.contact) return null;
+    if (this.isContactEmail) {
+      return {
+        uri: `mailto:${this.contact}`,
+        text: this.contact,
+      };
+    }
+    if (this.isContactURL) {
+      return {
+        uri: this.contact,
+        text:
+          InstanceContactLink.urlToHostname(this.contact) ||
+          (this.$t("Contact") as string),
+      };
+    }
+    return null;
+  }
+
+  get isContactEmail(): boolean {
+    return this.contact.includes("@");
+  }
+
+  get isContactURL(): boolean {
+    return this.contact.match(/^https?:\/\//g) !== null;
+  }
+
+  static urlToHostname(url: string): string | null {
+    try {
+      return new URL(url).hostname;
+    } catch (e) {
+      return null;
+    }
+  }
+}
+</script>
diff --git a/js/src/components/Error.vue b/js/src/components/Error.vue
new file mode 100644
index 000000000..3a0375860
--- /dev/null
+++ b/js/src/components/Error.vue
@@ -0,0 +1,219 @@
+<template>
+  <div class="container section" id="error-wrapper">
+    <div class="column">
+      <section>
+        <div class="picture-wrapper">
+          <picture>
+            <source
+              srcset="
+                /img/pics/error-480w.webp  1x,
+                /img/pics/error-1024w.webp 2x
+              "
+              type="image/webp"
+            />
+            <source
+              srcset="/img/pics/error-480w.jpg 1x, /img/pics/error-1024w.jpg 2x"
+              type="image/jpeg"
+            />
+
+            <img
+              :src="`/img/pics/error-480w.jpg`"
+              alt=""
+              width="480"
+              height="312"
+              loading="lazy"
+            />
+          </picture>
+        </div>
+        <b-message type="is-danger" class="is-size-5">
+          <h1>
+            {{
+              $t(
+                "An error has occured. Sorry about that. You may try to reload the page."
+              )
+            }}
+          </h1>
+        </b-message>
+      </section>
+      <b-loading v-if="$apollo.loading" :active.sync="$apollo.loading" />
+      <section v-else>
+        <h2 class="is-size-5">{{ $t("What can I do to help?") }}</h2>
+        <p class="content">
+          <i18n
+            tag="span"
+            path="{instanceName} is an instance of {mobilizon_link}, a free software built with the community."
+          >
+            <b slot="instanceName">{{ config.name }}</b>
+            <a slot="mobilizon_link" href="https://joinmobilizon.org">{{
+              $t("Mobilizon")
+            }}</a>
+          </i18n>
+          {{
+            $t(
+              "We improve this software thanks to your feedback. To let us know about this issue, two possibilities (both unfortunately require user account creation):"
+            )
+          }}
+        </p>
+        <div class="content">
+          <ul>
+            <li>
+              <a
+                href="https://framacolibri.org/c/mobilizon/39"
+                target="_blank"
+                >{{ $t("Open a topic on our forum") }}</a
+              >
+            </li>
+            <li>
+              <a
+                href="https://framagit.org/framasoft/mobilizon/-/issues/new?issuable_template=Bug"
+                target="_blank"
+                >{{
+                  $t("Open an issue on our bug tracker (advanced users)")
+                }}</a
+              >
+            </li>
+          </ul>
+        </div>
+        <p class="content">
+          {{
+            $t(
+              "Please add as many details as possible to help identify the problem."
+            )
+          }}
+        </p>
+
+        <details>
+          <summary class="is-size-5">{{ $t("Technical details") }}</summary>
+          <p>{{ $t("Error message") }}</p>
+          <pre>{{ error }}</pre>
+          <p>{{ $t("Error stacktrace") }}</p>
+          <pre>{{ error.stack }}</pre>
+        </details>
+        <p>
+          {{
+            $t(
+              "The technical details of the error can help developers solve the problem more easily. Please add them to your feedback."
+            )
+          }}
+        </p>
+        <div class="buttons">
+          <b-tooltip
+            :label="tooltipConfig.label"
+            :type="tooltipConfig.type"
+            :active="copied !== false"
+            always
+          >
+            <b-button @click="copyErrorToClipboard">{{
+              $t("Copy details to clipboard")
+            }}</b-button>
+          </b-tooltip>
+        </div>
+      </section>
+    </div>
+  </div>
+</template>
+<script lang="ts">
+import { CONTACT } from "@/graphql/config";
+import { Component, Prop, Vue } from "vue-property-decorator";
+import InstanceContactLink from "@/components/About/InstanceContactLink.vue";
+
+@Component({
+  apollo: {
+    config: {
+      query: CONTACT,
+    },
+  },
+  metaInfo() {
+    return {
+      // eslint-disable-next-line @typescript-eslint/ban-ts-comment
+      // @ts-ignore
+      title: this.$t("Error") as string,
+      titleTemplate: "%s | Mobilizon",
+    };
+  },
+  components: {
+    InstanceContactLink,
+  },
+})
+export default class ErrorComponent extends Vue {
+  @Prop({ required: true, type: Error }) error!: Error;
+
+  copied: "success" | "error" | false = false;
+
+  config!: { contact: string | null; name: string };
+
+  async copyErrorToClipboard(): Promise<void> {
+    try {
+      if (window.isSecureContext && navigator.clipboard) {
+        await navigator.clipboard.writeText(this.fullErrorString);
+      } else {
+        this.fallbackCopyTextToClipboard(this.fullErrorString);
+      }
+      this.copied = "success";
+      setTimeout(() => {
+        this.copied = false;
+      }, 2000);
+    } catch (e) {
+      this.copied = "error";
+      console.error("Unable to copy to clipboard");
+      console.error(e);
+    }
+  }
+
+  get fullErrorString(): string {
+    return `${this.error.name}: ${this.error.message}\n\n${this.error.stack}`;
+  }
+
+  get tooltipConfig(): { label: string | null; type: string | null } {
+    if (this.copied === "success")
+      return {
+        label: this.$t("Error details copied!") as string,
+        type: "is-success",
+      };
+    if (this.copied === "error")
+      return {
+        label: this.$t("Unable to copy to clipboard") as string,
+        type: "is-danger",
+      };
+    return { label: null, type: "is-primary" };
+  }
+
+  private fallbackCopyTextToClipboard(text: string): void {
+    const textArea = document.createElement("textarea");
+    textArea.value = text;
+
+    // Avoid scrolling to bottom
+    textArea.style.top = "0";
+    textArea.style.left = "0";
+    textArea.style.position = "fixed";
+
+    document.body.appendChild(textArea);
+    textArea.focus();
+    textArea.select();
+
+    document.execCommand("copy");
+
+    document.body.removeChild(textArea);
+  }
+}
+</script>
+<style lang="scss" scoped>
+#error-wrapper {
+  width: 100%;
+  background: $white;
+
+  section {
+    margin-bottom: 2rem;
+  }
+
+  .picture-wrapper {
+    text-align: center;
+  }
+
+  details {
+    summary:hover {
+      cursor: pointer;
+    }
+  }
+}
+</style>
diff --git a/js/src/graphql/config.ts b/js/src/graphql/config.ts
index 3dd903581..6e514ef35 100644
--- a/js/src/graphql/config.ts
+++ b/js/src/graphql/config.ts
@@ -112,6 +112,15 @@ export const ABOUT = gql`
   }
 `;
 
+export const CONTACT = gql`
+  query Contact {
+    config {
+      name
+      contact
+    }
+  }
+`;
+
 export const RULES = gql`
   query Rules {
     config {
diff --git a/js/src/i18n/en_US.json b/js/src/i18n/en_US.json
index fe0b9e625..669100da6 100644
--- a/js/src/i18n/en_US.json
+++ b/js/src/i18n/en_US.json
@@ -836,5 +836,19 @@
   "No follower matches the filters": "No follower matches the filters",
   "@{username}'s follow request was rejected": "@{username}'s follow request was rejected",
   "Followers will receive new public events and posts.": "Followers will receive new public events and posts.",
-  "Manually approve new followers": "Manually approve new followers"
+  "Manually approve new followers": "Manually approve new followers",
+  "An error has occured. Sorry about that. You may try to reload the page.": "An error has occured. Sorry about that. You may try to reload the page.",
+  "What can I do to help?": "What can I do to help?",
+  "We improve this software thanks to your feedback. To let us know about this issue, two possibilities (both unfortunately require user account creation):": "We improve this software thanks to your feedback. To let us know about this issue, two possibilities (both unfortunately require user account creation):'",
+  "Please add as many details as possible to help identify the problem.": "Please add as many details as possible to help identify the problem.",
+  "Technical details": "Technical details",
+  "Error message": "Error message",
+  "Error stacktrace": "Error stacktrace",
+  "The technical details of the error can help developers solve the problem more easily. Please add them to your feedback.": "The technical details of the error can help developers solve the problem more easily. Please add them to your feedback.",
+  "Error details copied!": "Error details copied!",
+  "Copy details to clipboard": "Copy details to clipboard",
+  "{instanceName} is an instance of {mobilizon_link}, a free software built with the community.": "{instanceName} is an instance of {mobilizon_link}, a free software built with the community.",
+  "Open a topic on our forum": "Open a topic on our forum",
+  "Open an issue on our bug tracker (advanced users)": "Open an issue on our bug tracker (advanced users)",
+  "Unable to copy to clipboard": "Unable to copy to clipboard"
 }
diff --git a/js/src/i18n/fr_FR.json b/js/src/i18n/fr_FR.json
index 4433842b5..30038166f 100644
--- a/js/src/i18n/fr_FR.json
+++ b/js/src/i18n/fr_FR.json
@@ -931,5 +931,19 @@
   "No follower matches the filters": "Aucun⋅e abonné⋅e ne correspond aux filtres",
   "@{username}'s follow request was rejected": "La demande de suivi de @{username} a été rejettée",
   "Followers will receive new public events and posts.": "Les abonnée⋅s recevront les nouveaux événements et billets publics.",
-  "Manually approve new followers": "Approuver les nouvelles demandes de suivi manuellement"
+  "Manually approve new followers": "Approuver les nouvelles demandes de suivi manuellement",
+  "An error has occured. Sorry about that. You may try to reload the page.": "Une erreur est survenue. Nous en sommes désolé⋅es. Vous pouvez essayer de rafraîchir la page.",
+  "What can I do to help?": "Que puis-je faire pour aider ?",
+  "We improve this software thanks to your feedback. To let us know about this issue, two possibilities (both unfortunately require user account creation):": "Nous améliorons ce logiciel grâce à vos retours. Pour nous avertir de ce problème, vous avez deux possibilités (les deux requièrent toutefois la création d'un compte) :",
+  "Please add as many details as possible to help identify the problem.": "Merci d'ajouter un maximum de détails afin d'aider à identifier le problème.",
+  "Technical details": "Détails techniques",
+  "Error message": "Message d'erreur",
+  "Error stacktrace": "Trace d'appels de l'erreur",
+  "The technical details of the error can help developers solve the problem more easily. Please add them to your feedback.": "Les détails techniques de l'erreur peuvent aider les développeur⋅ices à résoudre le problème plus facilement. Merci de les inclure dans vos retours.",
+  "Error details copied!": "Détails de l'erreur copiés !",
+  "Copy details to clipboard": "Copier les détails dans le presse-papiers",
+  "{instanceName} is an instance of {mobilizon_link}, a free software built with the community.": "{instanceName} est une instance de {mobilizon_link}, un logiciel libre construit de manière communautaire.",
+  "Open a topic on our forum": "Ouvrir un sujet sur notre forum",
+  "Open an issue on our bug tracker (advanced users)": "Ouvrir un ticket sur notre système de suivi des bugs (utilisateur⋅ices avancé⋅es)",
+  "Unable to copy to clipboard": "Impossible de copier dans le presse-papiers"
 }
diff --git a/js/src/router/index.ts b/js/src/router/index.ts
index e6313a39f..0a8b0534d 100644
--- a/js/src/router/index.ts
+++ b/js/src/router/index.ts
@@ -157,5 +157,10 @@ const router = new Router({
 });
 
 router.beforeEach(authGuardIfNeeded);
+router.afterEach(() => {
+  // eslint-disable-next-line @typescript-eslint/ban-ts-comment
+  // @ts-ignore
+  router.app.$children[0].error = null;
+});
 
 export default router;
diff --git a/js/src/views/About/AboutInstance.vue b/js/src/views/About/AboutInstance.vue
index 86b75262f..9aa1d9d26 100644
--- a/js/src/views/About/AboutInstance.vue
+++ b/js/src/views/About/AboutInstance.vue
@@ -25,16 +25,7 @@
       </div>
       <div class="column contact">
         <h4>{{ $t("Contact") }}</h4>
-        <p>
-          <a
-            :title="config.contact"
-            v-if="generateConfigLink()"
-            :href="generateConfigLink().uri"
-            >{{ generateConfigLink().text }}</a
-          >
-          <span v-else-if="config.contact">{{ config.contact }}</span>
-          <span v-else>{{ $t("contact uninformed") }}</span>
-        </p>
+        <instance-contact-link :contact="config.contact" />
       </div>
     </section>
     <hr />
@@ -85,6 +76,7 @@
 <script lang="ts">
 import { Component, Vue } from "vue-property-decorator";
 import { formatList } from "@/utils/i18n";
+import InstanceContactLink from "@/components/About/InstanceContactLink.vue";
 import { LANGUAGES_CODES } from "@/graphql/admin";
 import { ILanguage } from "@/types/admin.model";
 import { ABOUT } from "../../graphql/config";
@@ -109,6 +101,9 @@ import langs from "../../i18n/langs.json";
       },
     },
   },
+  components: {
+    InstanceContactLink,
+  },
 })
 export default class AboutInstance extends Vue {
   config!: IConfig;
@@ -117,14 +112,6 @@ export default class AboutInstance extends Vue {
 
   languages!: ILanguage[];
 
-  get isContactEmail(): boolean {
-    return this.config && this.config.contact.includes("@");
-  }
-
-  get isContactURL(): boolean {
-    return this.config && this.config.contact.match(/^https?:\/\//g) !== null;
-  }
-
   get formattedLanguageList(): string {
     if (this.languages) {
       const list = this.languages.map(({ name }) => name);
@@ -138,33 +125,6 @@ export default class AboutInstance extends Vue {
     const languageMaps = langs as Record<string, any>;
     return languageMaps[code];
   }
-
-  generateConfigLink(): { uri: string; text: string } | null {
-    if (!this.config.contact) return null;
-    if (this.isContactEmail) {
-      return {
-        uri: `mailto:${this.config.contact}`,
-        text: this.config.contact,
-      };
-    }
-    if (this.isContactURL) {
-      return {
-        uri: this.config.contact,
-        text:
-          AboutInstance.urlToHostname(this.config.contact) ||
-          (this.$t("Contact") as string),
-      };
-    }
-    return null;
-  }
-
-  static urlToHostname(url: string): string | null {
-    try {
-      return new URL(url).hostname;
-    } catch (e) {
-      return null;
-    }
-  }
 }
 </script>
 
diff --git a/js/src/views/Event/Event.vue b/js/src/views/Event/Event.vue
index 290dee24f..811c4f8f7 100755
--- a/js/src/views/Event/Event.vue
+++ b/js/src/views/Event/Event.vue
@@ -1,6 +1,5 @@
 <template>
   <div class="container">
-    <b-loading :active.sync="$apollo.loading" />
     <transition appear name="fade" mode="out-in">
       <div>
         <div
@@ -125,9 +124,9 @@
                     <b-icon icon="link" />
                   </p>
                 </template>
-                <template v-if="!event.local">
+                <template v-if="!event.local && organizer">
                   <a :href="event.url">
-                    <tag>{{ event.organizerActor.domain }}</tag>
+                    <tag>{{ organizer.domain }}</tag>
                   </a>
                 </template>
                 <p>
@@ -443,7 +442,7 @@
           <report-modal
             :on-confirm="reportEvent"
             :title="$t('Report this event')"
-            :outside-domain="domainForReport"
+            :outside-domain="organizerDomain"
             @close="$refs.reportModal.close()"
           />
         </b-modal>
@@ -942,7 +941,7 @@ export default class Event extends EventMixin {
       });
     });
 
-    this.$on("eventDeleted", () => {
+    this.$on("event-deleted", () => {
       return this.$router.push({ name: RouteName.HOME });
     });
   }
@@ -959,7 +958,7 @@ export default class Event extends EventMixin {
     // eslint-disable-next-line @typescript-eslint/ban-ts-comment
     // @ts-ignore
     this.$refs.reportModal.close();
-    if (!this.event.organizerActor) return;
+    if (!this.organizer) return;
     const eventTitle = this.event.title;
 
     try {
@@ -967,7 +966,7 @@ export default class Event extends EventMixin {
         mutation: CREATE_REPORT,
         variables: {
           eventId: this.event.id,
-          reportedId: this.actorForReport ? this.actorForReport.id : null,
+          reportedId: this.organizer ? this.organizer.id : null,
           content,
           forward,
         },
@@ -1240,7 +1239,7 @@ export default class Event extends EventMixin {
     );
   }
 
-  get actorForReport(): IActor | null {
+  get organizer(): IActor | null {
     if (this.event.attributedTo && this.event.attributedTo.id) {
       return this.event.attributedTo;
     }
@@ -1250,9 +1249,9 @@ export default class Event extends EventMixin {
     return null;
   }
 
-  get domainForReport(): string | null {
-    if (this.actorForReport) {
-      return this.actorForReport.domain;
+  get organizerDomain(): string | null {
+    if (this.organizer) {
+      return this.organizer.domain;
     }
     return null;
   }
diff --git a/lib/federation/activity_pub/activity_pub.ex b/lib/federation/activity_pub/activity_pub.ex
index cf7a9e54c..7aec827c2 100644
--- a/lib/federation/activity_pub/activity_pub.ex
+++ b/lib/federation/activity_pub/activity_pub.ex
@@ -710,6 +710,8 @@ defmodule Mobilizon.Federation.ActivityPub do
       Relay.publish(activity)
     end
 
+    recipients = Enum.uniq(recipients)
+
     {recipients, followers} = convert_followers_in_recipients(recipients)
 
     {recipients, members} = convert_members_in_recipients(recipients)
diff --git a/lib/federation/activity_pub/audience.ex b/lib/federation/activity_pub/audience.ex
index d374a8abc..1e491cb3a 100644
--- a/lib/federation/activity_pub/audience.ex
+++ b/lib/federation/activity_pub/audience.ex
@@ -7,6 +7,7 @@ defmodule Mobilizon.Federation.ActivityPub.Audience do
   alias Mobilizon.Actors.{Actor, Member}
   alias Mobilizon.Discussions.{Comment, Discussion}
   alias Mobilizon.Events.{Event, Participant}
+  alias Mobilizon.Posts.Post
   alias Mobilizon.Share
   alias Mobilizon.Storage.Repo
 
@@ -64,10 +65,6 @@ defmodule Mobilizon.Federation.ActivityPub.Audience do
     {mentions, []}
   end
 
-  #  def get_addressed_actors(_, to) when is_list(to) do
-  #    Actors.get(to)
-  #  end
-
   def get_addressed_actors(mentioned_users, _), do: mentioned_users
 
   def calculate_to_and_cc_from_mentions(
@@ -79,9 +76,8 @@ defmodule Mobilizon.Federation.ActivityPub.Audience do
   end
 
   def calculate_to_and_cc_from_mentions(%Comment{} = comment) do
-    with mentioned_actors <- Enum.map(comment.mentions, &process_mention/1),
-         addressed_actors <- get_addressed_actors(mentioned_actors, nil),
-         {to, cc} <- get_to_and_cc(comment.actor, addressed_actors, comment.visibility),
+    with {to, cc} <-
+           extract_actors_from_mentions(comment.mentions, comment.actor, comment.visibility),
          {to, cc} <- {Enum.uniq(to ++ add_in_reply_to(comment.in_reply_to_comment)), cc},
          {to, cc} <- {Enum.uniq(to ++ add_event_author(comment.event)), cc},
          {to, cc} <-
@@ -101,32 +97,45 @@ defmodule Mobilizon.Federation.ActivityPub.Audience do
     end
   end
 
-  def calculate_to_and_cc_from_mentions(%Event{
-        attributed_to: %Actor{members_url: members_url},
-        visibility: visibility
-      }) do
+  def calculate_to_and_cc_from_mentions(
+        %Event{
+          attributed_to: %Actor{members_url: members_url},
+          visibility: visibility
+        } = event
+      ) do
+    %{"to" => to, "cc" => cc} = extract_actors_from_event(event)
+
     case visibility do
       :public ->
-        %{"to" => [members_url, @ap_public], "cc" => []}
+        %{"to" => [@ap_public, members_url] ++ to, "cc" => [] ++ cc}
 
       :unlisted ->
-        %{"to" => [members_url], "cc" => [@ap_public]}
+        %{"to" => [members_url] ++ to, "cc" => [@ap_public] ++ cc}
 
       :private ->
+        # Private is restricted to only the members
         %{"to" => [members_url], "cc" => []}
     end
   end
 
   def calculate_to_and_cc_from_mentions(%Event{} = event) do
-    with mentioned_actors <- Enum.map(event.mentions, &process_mention/1),
-         addressed_actors <- get_addressed_actors(mentioned_actors, nil),
-         {to, cc} <- get_to_and_cc(event.organizer_actor, addressed_actors, event.visibility),
-         {to, cc} <-
-           {to,
-            Enum.uniq(
-              cc ++ add_comments_authors(event.comments) ++ add_shares_actors_followers(event.url)
-            )} do
-      %{"to" => to, "cc" => cc}
+    extract_actors_from_event(event)
+  end
+
+  def calculate_to_and_cc_from_mentions(%Post{
+        attributed_to: %Actor{members_url: members_url},
+        visibility: visibility
+      }) do
+    case visibility do
+      :public ->
+        %{"to" => [@ap_public, members_url], "cc" => []}
+
+      :unlisted ->
+        %{"to" => [members_url], "cc" => [@ap_public]}
+
+      :private ->
+        # Private is restricted to only the members
+        %{"to" => [members_url], "cc" => []}
     end
   end
 
@@ -211,4 +220,27 @@ defmodule Mobilizon.Federation.ActivityPub.Audience do
       url
     end
   end
+
+  @spec extract_actors_from_mentions(list(), Actor.t(), atom()) :: {list(), list()}
+  defp extract_actors_from_mentions(mentions, actor, visibility) do
+    with mentioned_actors <- Enum.map(mentions, &process_mention/1),
+         addressed_actors <- get_addressed_actors(mentioned_actors, nil) do
+      get_to_and_cc(actor, addressed_actors, visibility)
+    end
+  end
+
+  defp extract_actors_from_event(%Event{} = event) do
+    with {to, cc} <-
+           extract_actors_from_mentions(event.mentions, event.organizer_actor, event.visibility),
+         {to, cc} <-
+           {to,
+            Enum.uniq(
+              cc ++ add_comments_authors(event.comments) ++ add_shares_actors_followers(event.url)
+            )} do
+      %{"to" => to, "cc" => cc}
+    else
+      _ ->
+        %{"to" => [], "cc" => []}
+    end
+  end
 end
diff --git a/lib/federation/activity_pub/types/posts.ex b/lib/federation/activity_pub/types/posts.ex
index bddfaf475..22b145a66 100644
--- a/lib/federation/activity_pub/types/posts.ex
+++ b/lib/federation/activity_pub/types/posts.ex
@@ -2,6 +2,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Posts do
   @moduledoc false
   alias Mobilizon.{Actors, Posts, Tombstone}
   alias Mobilizon.Actors.Actor
+  alias Mobilizon.Federation.ActivityPub.Audience
   alias Mobilizon.Federation.ActivityPub.Types.Entity
   alias Mobilizon.Federation.ActivityStream.Converter.Utils, as: ConverterUtils
   alias Mobilizon.Federation.ActivityStream.Convertible
@@ -19,15 +20,11 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Posts do
          {:ok, %Post{attributed_to_id: group_id, author_id: creator_id} = post} <-
            Posts.create_post(args),
          {:ok, %Actor{} = group} <- Actors.get_group_by_actor_id(group_id),
-         %Actor{url: creator_url} = creator <- Actors.get_actor(creator_id),
+         %Actor{} = creator <- Actors.get_actor(creator_id),
          post_as_data <-
            Convertible.model_to_as(%{post | attributed_to: group, author: creator}),
-         audience <- %{
-           "to" => [group.members_url],
-           "cc" => [],
-           "actor" => creator_url,
-           "attributedTo" => [creator_url]
-         } do
+         audience <-
+           Audience.calculate_to_and_cc_from_mentions(post) do
       create_data = make_create_data(post_as_data, Map.merge(audience, additional))
 
       {:ok, post, create_data}
@@ -44,16 +41,12 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Posts do
          {:ok, %Post{attributed_to_id: group_id, author_id: creator_id} = post} <-
            Posts.update_post(post, args),
          {:ok, true} <- Cachex.del(:activity_pub, "post_#{post.slug}"),
-         {:ok, %Actor{url: group_url} = group} <- Actors.get_group_by_actor_id(group_id),
-         %Actor{url: creator_url} = creator <- Actors.get_actor(creator_id),
+         {:ok, %Actor{} = group} <- Actors.get_group_by_actor_id(group_id),
+         %Actor{} = creator <- Actors.get_actor(creator_id),
          post_as_data <-
            Convertible.model_to_as(%{post | attributed_to: group, author: creator}),
-         audience <- %{
-           "to" => [group.members_url],
-           "cc" => [],
-           "actor" => creator_url,
-           "attributedTo" => [group_url]
-         } do
+         audience <-
+           Audience.calculate_to_and_cc_from_mentions(post) do
       update_data = make_update_data(post_as_data, Map.merge(audience, additional))
 
       {:ok, post, update_data}
diff --git a/lib/federation/activity_pub/utils.ex b/lib/federation/activity_pub/utils.ex
index 32855aff7..6d39f3034 100644
--- a/lib/federation/activity_pub/utils.ex
+++ b/lib/federation/activity_pub/utils.ex
@@ -127,7 +127,7 @@ defmodule Mobilizon.Federation.ActivityPub.Utils do
   def maybe_relay_if_group_activity(activity, attributed_to \\ nil)
 
   def maybe_relay_if_group_activity(
-        %Activity{local: false, data: %{"object" => object}},
+        %Activity{data: %{"object" => object}},
         _attributed_to
       )
       when is_map(object) do
@@ -136,7 +136,7 @@ defmodule Mobilizon.Federation.ActivityPub.Utils do
 
   # When doing a delete the object is just an AP ID string, so we pass the attributed_to actor as well
   def maybe_relay_if_group_activity(
-        %Activity{local: false, data: %{"object" => object}},
+        %Activity{data: %{"object" => object}},
         %Actor{url: attributed_to_url}
       )
       when is_binary(object) do
@@ -421,7 +421,7 @@ defmodule Mobilizon.Federation.ActivityPub.Utils do
          ["https://www.w3.org/ns/activitystreams#Public"]}
       else
         if actor_type == :Group do
-          {[actor.members_url], []}
+          {[actor.followers_url, actor.members_url], []}
         else
           {[actor.followers_url], []}
         end
diff --git a/lib/federation/activity_stream/converter/event.ex b/lib/federation/activity_stream/converter/event.ex
index b415b4e8a..a45200b5a 100644
--- a/lib/federation/activity_stream/converter/event.ex
+++ b/lib/federation/activity_stream/converter/event.ex
@@ -94,18 +94,13 @@ defmodule Mobilizon.Federation.ActivityStream.Converter.Event do
     to =
       if event.visibility == :public,
         do: ["https://www.w3.org/ns/activitystreams#Public"],
-        else: [event.organizer_actor.followers_url]
+        else: [attributed_to_or_default(event).followers_url]
 
     %{
       "type" => "Event",
       "to" => to,
       "cc" => [],
-      "attributedTo" =>
-        if(is_nil(event.attributed_to) or not Ecto.assoc_loaded?(event.attributed_to),
-          do: nil,
-          else: event.attributed_to.url
-        ) ||
-          event.organizer_actor.url,
+      "attributedTo" => attributed_to_or_default(event).url,
       "name" => event.title,
       "actor" =>
         if(Ecto.assoc_loaded?(event.organizer_actor), do: event.organizer_actor.url, else: nil),
@@ -135,6 +130,15 @@ defmodule Mobilizon.Federation.ActivityStream.Converter.Event do
     |> maybe_add_inline_media(event)
   end
 
+  @spec attributed_to_or_default(Event.t()) :: Actor.t()
+  defp attributed_to_or_default(event) do
+    if(is_nil(event.attributed_to) or not Ecto.assoc_loaded?(event.attributed_to),
+      do: nil,
+      else: event.attributed_to
+    ) ||
+      event.organizer_actor
+  end
+
   # Get only elements that we have in EventOptions
   @spec get_options(map) :: map
   defp get_options(object) do
diff --git a/lib/federation/activity_stream/converter/post.ex b/lib/federation/activity_stream/converter/post.ex
index 7798a3a8c..45c7ad5d9 100644
--- a/lib/federation/activity_stream/converter/post.ex
+++ b/lib/federation/activity_stream/converter/post.ex
@@ -34,10 +34,20 @@ defmodule Mobilizon.Federation.ActivityStream.Converter.Post do
   @impl Converter
   @spec model_to_as(Post.t()) :: map
   def model_to_as(
-        %Post{author: %Actor{url: actor_url}, attributed_to: %Actor{url: creator_url}} = post
+        %Post{
+          author: %Actor{url: actor_url},
+          attributed_to: %Actor{url: creator_url, followers_url: followers_url}
+        } = post
       ) do
+    to =
+      if post.visibility == :public,
+        do: ["https://www.w3.org/ns/activitystreams#Public"],
+        else: [followers_url]
+
     %{
       "type" => "Article",
+      "to" => to,
+      "cc" => [],
       "actor" => actor_url,
       "id" => post.url,
       "name" => post.title,
diff --git a/lib/mobilizon/posts/post.ex b/lib/mobilizon/posts/post.ex
index c93d76b81..3642fe453 100644
--- a/lib/mobilizon/posts/post.ex
+++ b/lib/mobilizon/posts/post.ex
@@ -56,7 +56,7 @@ defmodule Mobilizon.Posts.Post do
     field(:title, :string)
     field(:url, :string)
     field(:publish_at, :utc_datetime)
-    field(:visibility, PostVisibility, default_value: :public)
+    field(:visibility, PostVisibility, default: :public)
     belongs_to(:author, Actor)
     belongs_to(:attributed_to, Actor)
     belongs_to(:picture, Media, on_replace: :update)
diff --git a/mix.exs b/mix.exs
index 22aa3764a..2a557d5c1 100644
--- a/mix.exs
+++ b/mix.exs
@@ -1,7 +1,7 @@
 defmodule Mobilizon.Mixfile do
   use Mix.Project
 
-  @version "1.0.5"
+  @version "1.0.6"
 
   def project do
     [