mobilizon/lib/web/templates/email/activity/_post_activity_item.text.eex

<%= case @activity.subject do %><% :post_created -> %><%= dgettext("activity", "The post %{post} was created by %{profile}.", 
    %{
        profile: Mobilizon.Actors.Actor.display_name_and_username(@activity.author),
        post: @activity.subject_params["post_title"]
    }
) %>
<%= url(~p"/p/#{@activity.subject_params["post_slug"]}") |> URI.decode() %><% :post_updated -> %><%= dgettext("activity", "The post %{post} was updated by %{profile}.", 
    %{
        profile: Mobilizon.Actors.Actor.display_name_and_username(@activity.author),
        post: @activity.subject_params["post_title"]
    }
) %>
<%= url(~p"/p/#{@activity.subject_params["post_slug"]}") |> URI.decode() %><% :post_deleted -> %><%= dgettext("activity", "The post %{post} was deleted by %{profile}.", 
    %{
        profile: Mobilizon.Actors.Actor.display_name_and_username(@activity.author),
        post: @activity.subject_params["post_title"]
    }
) %><% end %>