batch mention email notifications in timeframefeature/2295-email-mention-notification

28 files changed, 1167 insertions, 60 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index bfa76a89a..135e0ff5e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -85,6 +85,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Ability to define custom HTTP headers per each frontend
 - MRF (`NoEmptyPolicy`): New MRF Policy which will deny empty statuses or statuses of only mentions from being created by local users
 - New users will receive a simple email confirming their registration if no other emails will be dispatched. (e.g., Welcome, Confirmation, or Approval Required)
+- Email with missed mentions in a specific period.
 
 <details>
   <summary>API Changes</summary>
diff --git a/config/config.exs b/config/config.exs
index 4381068ac..10b8498ef 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -563,10 +563,12 @@ config :pleroma, Oban,
     remote_fetcher: 2,
     attachments_cleanup: 1,
     new_users_digest: 1,
-    mute_expire: 5
+    mute_expire: 5,
+    email_mentions: 1
   ],
   plugins: [Oban.Plugins.Pruner],
   crontab: [
+    {"*/15 * * * *", Pleroma.Workers.Cron.EmailMentionsWorker},
     {"0 0 * * 0", Pleroma.Workers.Cron.DigestEmailsWorker},
     {"0 0 * * *", Pleroma.Workers.Cron.NewUsersDigestWorker}
   ]
@@ -851,6 +853,10 @@ config :pleroma, ConcurrentLimiter, [
   {Pleroma.Web.ActivityPub.MRF.MediaProxyWarmingPolicy, [max_running: 5, max_waiting: 5]}
 ]
 
+config :pleroma, Pleroma.Workers.Cron.EmailMentionsWorker,
+  enabled: false,
+  timeframe: 30
+
 # Import environment specific config. This must remain at the bottom
 # of this file so it overrides the configuration defined above.
 import_config "#{Mix.env()}.exs"
diff --git a/docs/administration/CLI_tasks/user.md b/docs/administration/CLI_tasks/user.md
index 24fdaeab4..61774f469 100644
--- a/docs/administration/CLI_tasks/user.md
+++ b/docs/administration/CLI_tasks/user.md
@@ -300,3 +300,36 @@
     ```sh
     mix pleroma.user unconfirm_all
     ```
+
+## Update email notifications settings for user
+
+=== "OTP"
+
+    ```sh
+    ./bin/pleroma_ctl user email_notifications <nickname> [option ...]
+    ```
+
+=== "From Source"
+
+    ```sh
+    mix pleroma.user email_notifications <nickname> [option ...]
+    ```
+
+### Options
+
+- `--digest`/`--no-digest` - whether the user should receive digest emails
+- `--notifications` - what types of email notifications user should receive (can be aliased with `-n`). To disable all types pass `off` value.
+
+Example:
+
+=== "OTP"
+
+    ```sh
+    ./bin/pleroma_ctl user email_notifications lain --digest -n mention
+    ```
+
+=== "From Source"
+
+    ```sh
+    mix pleroma.user email_notifications lain --digest -n mention
+    ```
diff --git a/docs/configuration/cheatsheet.md b/docs/configuration/cheatsheet.md
index 069421722..262978b7d 100644
--- a/docs/configuration/cheatsheet.md
+++ b/docs/configuration/cheatsheet.md
@@ -715,6 +715,7 @@ Pleroma has these periodic job workers:
 
 * `Pleroma.Workers.Cron.DigestEmailsWorker` - digest emails for users with new mentions and follows
 * `Pleroma.Workers.Cron.NewUsersDigestWorker` - digest emails for admins with new registrations
+* `Pleroma.Workers.Cron.EmailMentionsWorker` - email with missed mentions notifications in special timeframe
 
 ```elixir
 config :pleroma, Oban,
@@ -726,6 +727,7 @@ config :pleroma, Oban,
     federator_outgoing: 50
   ],
   crontab: [
+    {"*/15 * * * *", Pleroma.Workers.Cron.EmailMentionsWorker},
     {"0 0 * * 0", Pleroma.Workers.Cron.DigestEmailsWorker},
     {"0 0 * * *", Pleroma.Workers.Cron.NewUsersDigestWorker}
   ]
@@ -1154,3 +1156,10 @@ Each job has these settings:
 
 * `:max_running` - max concurrently runnings jobs
 * `:max_waiting` - max waiting jobs
+
+## Mention emails (Pleroma.Workers.Cron.EmailMentionsWorker)
+
+The worker sends email notifications not read in a certain timeframe.
+
+* `:enabled` - enables email notifications for missed mentions & chat mentions
+* `:timeframe` - the period after which the sending of emails begins for missed mentions (in minutes)
diff --git a/docs/development/API/differences_in_mastoapi_responses.md b/docs/development/API/differences_in_mastoapi_responses.md
index 2ff56d3ca..72949c9d7 100644
--- a/docs/development/API/differences_in_mastoapi_responses.md
+++ b/docs/development/API/differences_in_mastoapi_responses.md
@@ -107,6 +107,7 @@ Has these additional fields under the `pleroma` object:
 - `notification_settings`: object, can be absent. See `/api/v1/pleroma/notification_settings` for the parameters/keys returned.
 - `accepts_chat_messages`: boolean, but can be null if we don't have that information about a user
 - `favicon`: nullable URL string, Favicon image of the user's instance
+- `email_notifications`: map with settings for `digest` emails (boolean) and `notifications` setting (list with notification types).
 
 ### Source
 
diff --git a/lib/mix/tasks/pleroma/app.ex b/lib/mix/tasks/pleroma/app.ex
index 0bf7ffabc..aa5c9cd54 100644
--- a/lib/mix/tasks/pleroma/app.ex
+++ b/lib/mix/tasks/pleroma/app.ex
@@ -21,7 +21,7 @@ defmodule Mix.Tasks.Pleroma.App do
 
     scopes =
       if opts[:scopes] do
-        String.split(opts[:scopes], ",")
+        String.split(opts[:scopes], ",", trim: true)
       else
         ["read", "write", "follow", "push"]
       end
diff --git a/lib/mix/tasks/pleroma/user.ex b/lib/mix/tasks/pleroma/user.ex
index 53d5fc6d9..d2a545e91 100644
--- a/lib/mix/tasks/pleroma/user.ex
+++ b/lib/mix/tasks/pleroma/user.ex
@@ -433,6 +433,35 @@ defmodule Mix.Tasks.Pleroma.User do
     |> Stream.run()
   end
 
+  def run(["email_notifications", nickname | options]) do
+    start_pleroma()
+
+    {opts, _} =
+      OptionParser.parse!(options,
+        strict: [digest: :boolean, notifications: :string],
+        aliases: [n: :notifications]
+      )
+
+    params =
+      Map.new(opts, fn
+        {:digest, v} ->
+          {"digest", v}
+
+        {:notifications, v} ->
+          types = if v == "off", do: [], else: String.split(v, ",", trim: true)
+          {"notifications", types}
+      end)
+
+    with keys when keys != [] <- Map.keys(params),
+         %User{local: true} = user <- User.get_cached_by_nickname(nickname) do
+      {:ok, user} = User.update_email_notifications(user, params)
+      shell_info("Email notifications for user #{user.nickname} were successfully updated.")
+    else
+      [] -> shell_error("No changes passed")
+      _ -> shell_error("No local user #{nickname}")
+    end
+  end
+
   defp set_moderator(user, value) do
     {:ok, user} =
       user
diff --git a/lib/pleroma/emails/user_email.ex b/lib/pleroma/emails/user_email.ex
index 52f3d419d..73cea4962 100644
--- a/lib/pleroma/emails/user_email.ex
+++ b/lib/pleroma/emails/user_email.ex
@@ -8,6 +8,7 @@ defmodule Pleroma.Emails.UserEmail do
   use Phoenix.Swoosh, view: Pleroma.Web.EmailView, layout: {Pleroma.Web.LayoutView, :email}
 
   alias Pleroma.Config
+  alias Pleroma.Notification
   alias Pleroma.User
   alias Pleroma.Web.Endpoint
   alias Pleroma.Web.Router
@@ -120,6 +121,27 @@ defmodule Pleroma.Emails.UserEmail do
     |> html_body(html_body)
   end
 
+  defp prepare_mention(%Notification{type: type} = notification, acc)
+       when type in ["mention", "pleroma:chat_mention"] do
+    object = Pleroma.Object.normalize(notification.activity, fetch: false)
+
+    if object do
+      object = update_in(object.data["content"], &format_links/1)
+
+      mention = %{
+        data: notification,
+        object: object,
+        from: User.get_by_ap_id(notification.activity.actor)
+      }
+
+      [mention | acc]
+    else
+      acc
+    end
+  end
+
+  defp prepare_mention(_, acc), do: acc
+
   @doc """
   Email used in digest email notifications
   Includes Mentions and New Followers data
@@ -127,25 +149,12 @@ defmodule Pleroma.Emails.UserEmail do
   """
   @spec digest_email(User.t()) :: Swoosh.Email.t() | nil
   def digest_email(user) do
-    notifications = Pleroma.Notification.for_user_since(user, user.last_digest_emailed_at)
+    notifications = Notification.for_user_since(user, user.last_digest_emailed_at)
 
     mentions =
       notifications
       |> Enum.filter(&(&1.activity.data["type"] == "Create"))
-      |> Enum.map(fn notification ->
-        object = Pleroma.Object.normalize(notification.activity, fetch: false)
-
-        if not is_nil(object) do
-          object = update_in(object.data["content"], &format_links/1)
-
-          %{
-            data: notification,
-            object: object,
-            from: User.get_by_ap_id(notification.activity.actor)
-          }
-        end
-      end)
-      |> Enum.filter(& &1)
+      |> Enum.reduce([], &prepare_mention/2)
 
     followers =
       notifications
@@ -165,7 +174,6 @@ defmodule Pleroma.Emails.UserEmail do
 
     unless Enum.empty?(mentions) do
       styling = Config.get([__MODULE__, :styling])
-      logo = Config.get([__MODULE__, :logo])
 
       html_data = %{
         instance: instance_name(),
@@ -176,20 +184,15 @@ defmodule Pleroma.Emails.UserEmail do
         styling: styling
       }
 
-      logo_path =
-        if is_nil(logo) do
-          Path.join(:code.priv_dir(:pleroma), "static/static/logo.svg")
-        else
-          Path.join(Config.get([:instance, :static_dir]), logo)
-        end
+      {logo_path, logo} = logo_path()
 
       new()
       |> to(recipient(user))
       |> from(sender())
       |> subject("Your digest from #{instance_name()}")
       |> put_layout(false)
-      |> render_body("digest.html", html_data)
-      |> attachment(Swoosh.Attachment.new(logo_path, filename: "logo.svg", type: :inline))
+      |> render_body("digest.html", Map.put(html_data, :logo, logo))
+      |> attachment(Swoosh.Attachment.new(logo_path, filename: logo, type: :inline))
     end
   end
 
@@ -242,4 +245,42 @@ defmodule Pleroma.Emails.UserEmail do
     |> subject("Your account archive is ready")
     |> html_body(html_body)
   end
+
+  @spec mentions_notification_email(User.t(), [Notification.t()]) :: Swoosh.Email.t()
+  def mentions_notification_email(user, mentions) do
+    html_data = %{
+      instance: instance_name(),
+      user: user,
+      mentions: Enum.reduce(mentions, [], &prepare_mention/2),
+      unsubscribe_link: unsubscribe_url(user, "mentions_email"),
+      styling: Config.get([__MODULE__, :styling])
+    }
+
+    now = NaiveDateTime.utc_now()
+
+    {logo_path, logo} = logo_path()
+
+    new()
+    |> to(recipient(user))
+    |> from(sender())
+    |> subject(
+      "[Pleroma] New mentions from #{instance_name()} for #{
+        Timex.format!(now, "{Mfull} {D}, {YYYY} at {h12}:{m} {AM}")
+      }"
+    )
+    |> put_layout(false)
+    |> render_body("mentions.html", Map.put(html_data, :logo, logo))
+    |> attachment(Swoosh.Attachment.new(logo_path, filename: logo, type: :inline))
+  end
+
+  defp logo_path do
+    logo_path =
+      if logo = Config.get([__MODULE__, :logo]) do
+        Path.join(Config.get([:instance, :static_dir]), logo)
+      else
+        Path.join(:code.priv_dir(:pleroma), "static/static/logo.svg")
+      end
+
+    {logo_path, Path.basename(logo_path)}
+  end
 end
diff --git a/lib/pleroma/migration_helper/notification_backfill.ex b/lib/pleroma/migration_helper/notification_backfill.ex
index 62b710f82..e634ba326 100644
--- a/lib/pleroma/migration_helper/notification_backfill.ex
+++ b/lib/pleroma/migration_helper/notification_backfill.ex
@@ -11,9 +11,11 @@ defmodule Pleroma.MigrationHelper.NotificationBackfill do
 
   def fill_in_notification_types do
     query =
-      from(n in Pleroma.Notification,
+      from(n in "notifications",
         where: is_nil(n.type),
-        preload: :activity
+        join: a in "activities",
+        on: n.activity_id == a.id,
+        select: %{id: n.id, activity: %{id: a.id, data: a.data}}
       )
 
     query
@@ -22,9 +24,8 @@ defmodule Pleroma.MigrationHelper.NotificationBackfill do
       if notification.activity do
         type = type_from_activity(notification.activity)
 
-        notification
-        |> Ecto.Changeset.change(%{type: type})
-        |> Repo.update()
+        from(n in "notifications", where: n.id == ^notification.id)
+        |> Repo.update_all(set: [type: type])
       end
     end)
   end
diff --git a/lib/pleroma/notification.ex b/lib/pleroma/notification.ex
index 7efbdc49a..8adbc07f4 100644
--- a/lib/pleroma/notification.ex
+++ b/lib/pleroma/notification.ex
@@ -37,6 +37,7 @@ defmodule Pleroma.Notification do
     field(:type, :string)
     belongs_to(:user, User, type: FlakeId.Ecto.CompatType)
     belongs_to(:activity, Activity, type: FlakeId.Ecto.CompatType)
+    field(:notified_at, :naive_datetime)
 
     timestamps()
   end
@@ -249,7 +250,7 @@ defmodule Pleroma.Notification do
       iex> Pleroma.Notification.for_user_since(%Pleroma.User{}, ~N[2019-04-15 11:22:33])
       []
   """
-  @spec for_user_since(Pleroma.User.t(), NaiveDateTime.t()) :: [t()]
+  @spec for_user_since(User.t(), NaiveDateTime.t()) :: [t()]
   def for_user_since(user, date) do
     from(n in for_user_query(user),
       where: n.updated_at > ^date
@@ -664,4 +665,48 @@ defmodule Pleroma.Notification do
     )
     |> Repo.update_all(set: [seen: true])
   end
+
+  defp unread_mentions_in_timeframe_query(query \\ __MODULE__, args) do
+    types = args[:types] || ["mention", "pleroma:chat_mention"]
+    max_at = args[:max_at]
+
+    from(n in query,
+      where: n.seen == false,
+      where: is_nil(n.notified_at),
+      where: n.type in ^types,
+      where: n.inserted_at <= ^max_at
+    )
+  end
+
+  @spec users_ids_with_unread_mentions(NaiveDateTime.t()) :: [String.t()]
+  def users_ids_with_unread_mentions(max_at) do
+    from(n in unread_mentions_in_timeframe_query(%{max_at: max_at}),
+      join: u in assoc(n, :user),
+      where: not is_nil(u.email),
+      distinct: n.user_id,
+      select: n.user_id
+    )
+    |> Repo.all()
+  end
+
+  @spec for_user_unread_mentions(User.t(), NaiveDateTime.t()) :: [t()]
+  def for_user_unread_mentions(%User{} = user, max_at) do
+    args = %{
+      max_at: max_at,
+      types: user.email_notifications["notifications"]
+    }
+
+    user
+    |> for_user_query()
+    |> unread_mentions_in_timeframe_query(args)
+    |> Repo.all()
+  end
+
+  @spec update_notified_at([pos_integer()]) :: {non_neg_integer(), nil}
+  def update_notified_at(ids \\ []) do
+    from(n in __MODULE__,
+      where: n.id in ^ids
+    )
+    |> Repo.update_all(set: [notified_at: NaiveDateTime.utc_now()])
+  end
 end
diff --git a/lib/pleroma/user.ex b/lib/pleroma/user.ex
index b78777141..c5ea1ba10 100644
--- a/lib/pleroma/user.ex
+++ b/lib/pleroma/user.ex
@@ -131,7 +131,11 @@ defmodule Pleroma.User do
     field(:hide_followers, :boolean, default: false)
     field(:hide_follows, :boolean, default: false)
     field(:hide_favorites, :boolean, default: true)
-    field(:email_notifications, :map, default: %{"digest" => false})
+
+    field(:email_notifications, :map,
+      default: %{"digest" => false, "notifications" => ["mention", "pleroma:chat_mention"]}
+    )
+
     field(:mascot, :map, default: nil)
     field(:emoji, :map, default: %{})
     field(:pleroma_settings_store, :map, default: %{})
@@ -525,7 +529,8 @@ defmodule Pleroma.User do
         :is_discoverable,
         :actor_type,
         :accepts_chat_messages,
-        :disclose_client
+        :disclose_client,
+        :email_notifications
       ]
     )
     |> unique_constraint(:nickname)
@@ -2390,17 +2395,14 @@ defmodule Pleroma.User do
     |> update_and_set_cache()
   end
 
+  @spec update_email_notifications(t(), map()) :: {:ok, t()} | {:error, Ecto.Changeset.t()}
   def update_email_notifications(user, settings) do
-    email_notifications =
-      user.email_notifications
-      |> Map.merge(settings)
-      |> Map.take(["digest"])
+    email_notifications = Map.merge(user.email_notifications, settings)
 
-    params = %{email_notifications: email_notifications}
     fields = [:email_notifications]
 
     user
-    |> cast(params, fields)
+    |> cast(%{email_notifications: email_notifications}, fields)
     |> validate_required(fields)
     |> update_and_set_cache()
   end
@@ -2431,8 +2433,8 @@ defmodule Pleroma.User do
     end
   end
 
-  @spec add_to_block(User.t(), User.t()) ::
-          {:ok, UserRelationship.t()} | {:ok, nil} | {:error, Ecto.Changeset.t()}
+  @spec remove_from_block(User.t(), User.t()) ::
+          {:ok, UserRelationship.t() | nil} | {:error, Ecto.Changeset.t()}
   defp remove_from_block(%User{} = user, %User{} = blocked) do
     with {:ok, relationship} <- UserRelationship.delete_block(user, blocked) do
       @cachex.del(:user_cache, "blocked_users_ap_ids:#{user.ap_id}")
diff --git a/lib/pleroma/web/api_spec/operations/account_operation.ex b/lib/pleroma/web/api_spec/operations/account_operation.ex
index 54e5ebc76..d0d7d751e 100644
--- a/lib/pleroma/web/api_spec/operations/account_operation.ex
+++ b/lib/pleroma/web/api_spec/operations/account_operation.ex
@@ -635,7 +635,8 @@ defmodule Pleroma.Web.ApiSpec.AccountOperation do
           description:
             "Discovery (listing, indexing) of this account by external services (search bots etc.) is allowed."
         },
-        actor_type: ActorType
+        actor_type: ActorType,
+        email_notifications: email_notifications()
       },
       example: %{
         bot: false,
@@ -760,6 +761,31 @@ defmodule Pleroma.Web.ApiSpec.AccountOperation do
     }
   end
 
+  defp email_notifications do
+    %Schema{
+      title: "EmailNotificationsObject",
+      description: "User Email notification settings",
+      type: :object,
+      properties: %{
+        digest: %Schema{
+          allOf: [BooleanLike],
+          nullable: true,
+          description: "Whether the account receives digest email"
+        },
+        notifications: %Schema{
+          type: :array,
+          nullable: true,
+          description: "List of notification types to receive by Email",
+          items: %Schema{type: :string}
+        }
+      },
+      example: %{
+        "digest" => true,
+        "notifications" => ["mention", "pleroma:chat_mention"]
+      }
+    }
+  end
+
   defp array_of_lists do
     %Schema{
       title: "ArrayOfLists",
diff --git a/lib/pleroma/web/mastodon_api/controllers/account_controller.ex b/lib/pleroma/web/mastodon_api/controllers/account_controller.ex
index 7a1e99044..a8f11786b 100644
--- a/lib/pleroma/web/mastodon_api/controllers/account_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/account_controller.ex
@@ -213,6 +213,7 @@ defmodule Pleroma.Web.MastodonAPI.AccountController do
       |> Maps.put_if_present(:is_locked, params[:locked])
       # Note: param name is indeed :discoverable (not an error)
       |> Maps.put_if_present(:is_discoverable, params[:discoverable])
+      |> Maps.put_if_present(:email_notifications, params[:email_notifications])
 
     # What happens here:
     #
diff --git a/lib/pleroma/web/mastodon_api/views/account_view.ex b/lib/pleroma/web/mastodon_api/views/account_view.ex
index ac25aefdd..4165aa890 100644
--- a/lib/pleroma/web/mastodon_api/views/account_view.ex
+++ b/lib/pleroma/web/mastodon_api/views/account_view.ex
@@ -279,7 +279,8 @@ defmodule Pleroma.Web.MastodonAPI.AccountView do
         skip_thread_containment: user.skip_thread_containment,
         background_image: image_url(user.background) |> MediaProxy.url(),
         accepts_chat_messages: user.accepts_chat_messages,
-        favicon: favicon
+        favicon: favicon,
+        email_notifications: user.email_notifications
       }
     }
     |> maybe_put_role(user, opts[:for])
diff --git a/lib/pleroma/web/templates/email/digest.html.eex b/lib/pleroma/web/templates/email/digest.html.eex
index 60eceff22..9afb2ca49 100644
--- a/lib/pleroma/web/templates/email/digest.html.eex
+++ b/lib/pleroma/web/templates/email/digest.html.eex
@@ -126,7 +126,7 @@
 											<div align="center" class="img-container center"
 												style="padding-right: 0px;padding-left: 0px;">
 												<!--[if mso]><table width="100%" cellpadding="0" cellspacing="0" border="0"><tr style="line-height:0px"><td style="padding-right: 0px;padding-left: 0px;" align="center"><![endif]--><img
-													align="center" alt="Image" border="0" class="center" src="cid:logo.svg"
+													align="center" alt="Image" border="0" class="center" src="cid:<%= @logo %>"
 													style="text-decoration: none; -ms-interpolation-mode: bicubic; border: 0; height: 80px; width: auto; max-height: 80px; display: block;"
 													title="Image" height="80" />
 												<!--[if mso]></td></tr></table><![endif]-->
diff --git a/lib/pleroma/web/templates/email/mentions.html.eex b/lib/pleroma/web/templates/email/mentions.html.eex
new file mode 100644
index 000000000..c95dc97f1
--- /dev/null
+++ b/lib/pleroma/web/templates/email/mentions.html.eex
@@ -0,0 +1,439 @@
+<!DOCTYPE html
+	PUBLIC "-//W3C//DTD XHTML 1.0 Transitional //EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+
+<html xmlns="http://www.w3.org/1999/xhtml" xmlns:o="urn:schemas-microsoft-com:office:office"
+	xmlns:v="urn:schemas-microsoft-com:vml">
+
+<head>
+	<!--[if gte mso 9]><xml><o:OfficeDocumentSettings><o:AllowPNG/><o:PixelsPerInch>96</o:PixelsPerInch></o:OfficeDocumentSettings></xml><![endif]-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type" />
+	<meta content="width=device-width" name="viewport" />
+	<!--[if !mso]><!-->
+	<meta content="IE=edge" http-equiv="X-UA-Compatible" />
+	<!--<![endif]-->
+	<title><%= @email.subject %><</title>
+	<!--[if !mso]><!-->
+	<!--<![endif]-->
+	<style type="text/css">
+		body {
+			margin: 0;
+			padding: 0;
+		}
+
+		a {
+
+			color: <%= @styling.link_color %>;
+			text-decoration: none;
+		}
+
+		table,
+		td,
+		tr {
+			vertical-align: top;
+			border-collapse: collapse;
+		}
+
+		* {
+			line-height: inherit;
+		}
+
+		a[x-apple-data-detectors=true] {
+			color: inherit !important;
+			text-decoration: none !important;
+		}
+	</style>
+	<style id="media-query" type="text/css">
+		@media (max-width: 610px) {
+
+			.block-grid,
+			.col {
+				min-width: 320px !important;
+				max-width: 100% !important;
+				display: block !important;
+			}
+
+			.block-grid {
+				width: 100% !important;
+			}
+
+			.col {
+				width: 100% !important;
+			}
+
+			.col>div {
+				margin: 0 auto;
+			}
+
+			.no-stack .col {
+				min-width: 0 !important;
+				display: table-cell !important;
+			}
+
+			.no-stack.two-up .col {
+				width: 50% !important;
+			}
+
+			.no-stack .col.num4 {
+				width: 33% !important;
+			}
+
+			.no-stack .col.num8 {
+				width: 66% !important;
+			}
+
+			.no-stack .col.num4 {
+				width: 33% !important;
+			}
+
+			.no-stack .col.num3 {
+				width: 25% !important;
+			}
+
+			.no-stack .col.num6 {
+				width: 50% !important;
+			}
+
+			.no-stack .col.num9 {
+				width: 75% !important;
+			}
+
+		}
+	</style>
+</head>
+
+<body class="clean-body" style="margin: 0; padding: 0; -webkit-text-size-adjust: 100%; background-color: <%= @styling.background_color %>;">
+	<!--[if IE]><div class="ie-browser"><![endif]-->
+	<table bgcolor="<%= @styling.background_color %>" cellpadding="0" cellspacing="0" class="nl-container" role="presentation"
+		style="table-layout: fixed; vertical-align: top; min-width: 320px; Margin: 0 auto; border-spacing: 0; border-collapse: collapse; mso-table-lspace: 0pt; mso-table-rspace: 0pt; background-color: <%= @styling.background_color %>; width: 100%;"
+		valign="top" width="100%">
+		<tbody>
+			<tr style="vertical-align: top;" valign="top">
+				<td style="word-break: break-word; vertical-align: top;" valign="top">
+					<!--[if (mso)|(IE)]><table width="100%" cellpadding="0" cellspacing="0" border="0"><tr><td align="center" style="background-color:<%= @styling.background_color %>"><![endif]-->
+					<div style="background-color:transparent;">
+						<div class="block-grid"
+							style="Margin: 0 auto; min-width: 320px; max-width: 590px; overflow-wrap: break-word; word-wrap: break-word; word-break: break-word; background-color: <%= @styling.content_background_color%>;">
+							<div style="border-collapse: collapse;display: table;width: 100%;background-color:<%= @styling.content_background_color%>;">
+								<!--[if (mso)|(IE)]><table width="100%" cellpadding="0" cellspacing="0" border="0" style="background-color:transparent;"><tr><td align="center"><table cellpadding="0" cellspacing="0" border="0" style="width:590px"><tr class="layout-full-width" style="background-color:<%= @styling.content_background_color%>"><![endif]-->
+								<!--[if (mso)|(IE)]><td align="center" width="590" style="background-color:<%= @styling.content_background_color%>;width:590px; border-top: 0px solid transparent; border-left: 0px solid transparent; border-bottom: 0px solid transparent; border-right: 0px solid transparent;" valign="top"><table width="100%" cellpadding="0" cellspacing="0" border="0"><tr><td style="padding-right: 0px; padding-left: 0px; padding-top:5px; padding-bottom:5px;"><![endif]-->
+								<div class="col num12"
+									style="min-width: 320px; max-width: 590px; display: table-cell; vertical-align: top; width: 590px;">
+									<div style="width:100% !important;">
+										<!--[if (!mso)&(!IE)]><!-->
+										<div
+											style="border-top:0px solid transparent; border-left:0px solid transparent; border-bottom:0px solid transparent; border-right:0px solid transparent; padding-top:5px; padding-bottom:5px; padding-right: 0px; padding-left: 0px;">
+											<!--<![endif]-->
+											<div align="center" class="img-container center"
+												style="padding-right: 0px;padding-left: 0px;">
+												<!--[if mso]><table width="100%" cellpadding="0" cellspacing="0" border="0"><tr style="line-height:0px"><td style="padding-right: 0px;padding-left: 0px;" align="center"><![endif]--><img
+													align="center" alt="Image" border="0" class="center" src="cid:<%= @logo %>"
+													style="text-decoration: none; -ms-interpolation-mode: bicubic; border: 0; height: 80px; width: auto; max-height: 80px; display: block;"
+													title="Image" height="80" />
+												<!--[if mso]></td></tr></table><![endif]-->
+											</div>
+											<!--[if (!mso)&(!IE)]><!-->
+										</div>
+										<!--<![endif]-->
+									</div>
+								</div>
+								<!--[if (mso)|(IE)]></td></tr></table><![endif]-->
+								<!--[if (mso)|(IE)]></td></tr></table></td></tr></table><![endif]-->
+							</div>
+						</div>
+					</div>
+					<div style="background-color:transparent;">
+						<div class="block-grid"
+							style="Margin: 0 auto; min-width: 320px; max-width: 590px; overflow-wrap: break-word; word-wrap: break-word; word-break: break-word; background-color: <%= @styling.content_background_color%>;">
+							<div style="border-collapse: collapse;display: table;width: 100%;background-color:<%= @styling.content_background_color%>;">
+								<!--[if (mso)|(IE)]><table width="100%" cellpadding="0" cellspacing="0" border="0" style="background-color:transparent;"><tr><td align="center"><table cellpadding="0" cellspacing="0" border="0" style="width:590px"><tr class="layout-full-width" style="background-color:<%= @styling.content_background_color%>"><![endif]-->
+								<!--[if (mso)|(IE)]><td align="center" width="590" style="background-color:<%= @styling.content_background_color%>;width:590px; border-top: 0px solid transparent; border-left: 0px solid transparent; border-bottom: 0px solid transparent; border-right: 0px solid transparent;" valign="top"><table width="100%" cellpadding="0" cellspacing="0" border="0"><tr><td style="padding-right: 0px; padding-left: 0px; padding-top:5px; padding-bottom:5px;"><![endif]-->
+								<div class="col num12"
+									style="min-width: 320px; max-width: 590px; display: table-cell; vertical-align: top; width: 590px;">
+									<div style="width:100% !important;">
+										<!--[if (!mso)&(!IE)]><!-->
+										<div
+											style="border-top:0px solid transparent; border-left:0px solid transparent; border-bottom:0px solid transparent; border-right:0px solid transparent; padding-top:5px; padding-bottom:5px; padding-right: 0px; padding-left: 0px;">
+											<!--<![endif]-->
+											<!--[if mso]><table width="100%" cellpadding="0" cellspacing="0" border="0"><tr><td style="padding-right: 10px; padding-left: 10px; padding-top: 10px; padding-bottom: 10px; font-family: Arial, sans-serif"><![endif]-->
+											<div
+												style="line-height:120%;padding-top:10px;padding-right:10px;padding-bottom:10px;padding-left:10px;">
+												<div
+													style="font-family: Arial, 'Helvetica Neue', Helvetica, sans-serif;line-height: 14px; color: <%= @styling.header_color %>;">
+													<p style="line-height: 36px; text-align: center; margin: 0;"><span
+															style="font-size: 30px; color: <%= @styling.header_color %>;">Hey <%= @user.nickname %>, here is what you've missed!</span></p>
+												</div>
+											</div>
+											<!--[if mso]></td></tr></table><![endif]-->
+											<!--[if (!mso)&(!IE)]><!-->
+										</div>
+										<!--<![endif]-->
+									</div>
+								</div>
+								<!--[if (mso)|(IE)]></td></tr></table><![endif]-->
+								<!--[if (mso)|(IE)]></td></tr></table></td></tr></table><![endif]-->
+							</div>
+						</div>
+					</div>
+					<div style="background-color:transparent;">
+						<div class="block-grid"
+							style="Margin: 0 auto; min-width: 320px; max-width: 590px; overflow-wrap: break-word; word-wrap: break-word; word-break: break-word; background-color: <%= @styling.content_background_color%>;">
+							<div style="border-collapse: collapse;display: table;width: 100%;background-color:<%= @styling.content_background_color%>;">
+								<!--[if (mso)|(IE)]><table width="100%" cellpadding="0" cellspacing="0" border="0" style="background-color:transparent;"><tr><td align="center"><table cellpadding="0" cellspacing="0" border="0" style="width:590px"><tr class="layout-full-width" style="background-color:<%= @styling.content_background_color%>"><![endif]-->
+								<!--[if (mso)|(IE)]><td align="center" width="590" style="background-color:<%= @styling.content_background_color%>;width:590px; border-top: 0px solid transparent; border-left: 0px solid transparent; border-bottom: 0px solid transparent; border-right: 0px solid transparent;" valign="top"><table width="100%" cellpadding="0" cellspacing="0" border="0"><tr><td style="padding-right: 15px; padding-left: 15px; padding-top:5px; padding-bottom:5px;"><![endif]-->
+								<div class="col num12"
+									style="min-width: 320px; max-width: 590px; display: table-cell; vertical-align: top; width: 590px;">
+									<div style="width:100% !important;">
+										<!--[if (!mso)&(!IE)]><!-->
+										<div
+											style="border-top:0px solid transparent; border-left:0px solid transparent; border-bottom:0px solid transparent; border-right:0px solid transparent; padding-top:5px; padding-bottom:5px; padding-right: 15px; padding-left: 15px;">
+											<!--<![endif]-->
+											<table border="0" cellpadding="0" cellspacing="0" class="divider" role="presentation"
+												style="table-layout: fixed; vertical-align: top; border-spacing: 0; border-collapse: collapse; mso-table-lspace: 0pt; mso-table-rspace: 0pt; min-width: 100%; -ms-text-size-adjust: 100%; -webkit-text-size-adjust: 100%;"
+												valign="top" width="100%">
+												<tbody>
+													<tr style="vertical-align: top;" valign="top">
+														<td class="divider_inner"
+															style="word-break: break-word; vertical-align: top; min-width: 100%; -ms-text-size-adjust: 100%; -webkit-text-size-adjust: 100%; padding-top: 10px; padding-right: 10px; padding-bottom: 10px; padding-left: 10px;"
+															valign="top">
+															<table align="center" border="0" cellpadding="0" cellspacing="0" class="divider_content"
+																height="0" role="presentation"
+																style="table-layout: fixed; vertical-align: top; border-spacing: 0; border-collapse: collapse; mso-table-lspace: 0pt; mso-table-rspace: 0pt; width: 100%; border-top: 1px solid <%= @styling.text_color %>; height: 0px;"
+																valign="top" width="100%">
+																<tbody>
+																	<tr style="vertical-align: top;" valign="top">
+																		<td height="0"
+																			style="word-break: break-word; vertical-align: top; -ms-text-size-adjust: 100%; -webkit-text-size-adjust: 100%;"
+																			valign="top"><span></span></td>
+																	</tr>
+																</tbody>
+															</table>
+														</td>
+													</tr>
+												</tbody>
+											</table>
+											<!--[if mso]><table width="100%" cellpadding="0" cellspacing="0" border="0"><tr><td style="padding-right: 10px; padding-left: 10px; padding-top: 10px; padding-bottom: 10px; font-family: Arial, sans-serif"><![endif]-->
+											<div
+												style="color:<%= @styling.text_color %>;font-family:Arial, 'Helvetica Neue', Helvetica, sans-serif;line-height:120%;padding-top:10px;padding-right:10px;padding-bottom:10px;padding-left:10px;">
+												<p
+													style="font-size: 12px; line-height: 24px; text-align: center; color: <%= @styling.text_color %>; font-family: Arial, 'Helvetica Neue', Helvetica, sans-serif; margin: 0;">
+													<span style="font-size: 20px;">Mentions</span></p>
+											</div>
+											<!--[if mso]></td></tr></table><![endif]-->
+											<!--[if (!mso)&(!IE)]><!-->
+										</div>
+										<!--<![endif]-->
+									</div>
+								</div>
+								<!--[if (mso)|(IE)]></td></tr></table><![endif]-->
+								<!--[if (mso)|(IE)]></td></tr></table></td></tr></table><![endif]-->
+							</div>
+						</div>
+					</div>
+
+          <%= for %{data: mention, object: object, from: from} <- @mentions do %>
+					<%# mention START %>
+					<%# user card START %>
+					<div style="background-color:transparent;">
+						<div class="block-grid mixed-two-up no-stack"
+							style="Margin: 0 auto; min-width: 320px; max-width: 590px; overflow-wrap: break-word; word-wrap: break-word; word-break: break-word; background-color: <%= @styling.content_background_color%>;">
+							<div style="border-collapse: collapse;display: table;width: 100%;background-color:<%= @styling.content_background_color%>;">
+								<!--[if (mso)|(IE)]><table width="100%" cellpadding="0" cellspacing="0" border="0" style="background-color:transparent;"><tr><td align="center"><table cellpadding="0" cellspacing="0" border="0" style="width:590px"><tr class="layout-full-width" style="background-color:<%= @styling.content_background_color%>"><![endif]-->
+								<!--[if (mso)|(IE)]><td align="center" width="147" style="background-color:<%= @styling.content_background_color%>;width:76px; border-top: 0px solid transparent; border-left: 0px solid transparent; border-bottom: 0px solid transparent; border-right: 0px solid transparent;" valign="top"><table width="100%" cellpadding="0" cellspacing="0" border="0"><tr><td style="padding-right: 0px; padding-left: 20px; padding-top:5px; padding-bottom:5px;"><![endif]-->
+								<div class="col num3"
+									style="display: table-cell; vertical-align: top; max-width: 320px; min-width: 76px; width: 76px;">
+									<div style="width:100% !important;">
+										<!--[if (!mso)&(!IE)]><!-->
+										<div
+											style="border-top:0px solid transparent; border-left:0px solid transparent; border-bottom:0px solid transparent; border-right:0px solid transparent; padding-top:5px; padding-bottom:5px; padding-right: 0px; padding-left: 20px;">
+											<!--<![endif]-->
+											<div align="left" class="img-container left "
+												style="padding-right: 0px;padding-left: 0px;">
+												<!--[if mso]><table width="100%" cellpadding="0" cellspacing="0" border="0"><tr style="line-height:0px"><td style="padding-right: 0px;padding-left: 0px;" align="left"><![endif]--><img
+													alt="<%= from.name %>" border="0" class="left " src="<%= avatar_url(from) %>"
+													style="text-decoration: none; -ms-interpolation-mode: bicubic; border: 0; height: auto; width: 100%; max-width: 76px; display: block;"
+													title="<%= from.name %>" width="76" />
+												<!--[if mso]></td></tr></table><![endif]-->
+											</div>
+											<!--[if (!mso)&(!IE)]><!-->
+										</div>
+										<!--<![endif]-->
+									</div>
+								</div>
+
+								<!--[if (mso)|(IE)]></td></tr></table><![endif]-->
+								<!--[if (mso)|(IE)]></td><td align="center" width="442" style="background-color:<%= @styling.content_background_color%>;width:442px; border-top: 0px solid transparent; border-left: 0px solid transparent; border-bottom: 0px solid transparent; border-right: 0px solid transparent;" valign="top"><table width="100%" cellpadding="0" cellspacing="0" border="0"><tr><td style="padding-right: 0px; padding-left: 0px; padding-top:5px; padding-bottom:5px;"><![endif]-->
+								<div class="col num9"
+									style="display: table-cell; vertical-align: top; min-width: 320px; max-width: 441px; width: 442px;">
+									<div style="width:100% !important;">
+										<!--[if (!mso)&(!IE)]><!-->
+										<div
+											style="border-top:0px solid transparent; border-left:0px solid transparent; border-bottom:0px solid transparent; border-right:0px solid transparent; padding-top:5px; padding-bottom:5px; padding-right: 0px; padding-left: 0px;">
+											<!--<![endif]-->
+											<!--[if mso]><table width="100%" cellpadding="0" cellspacing="0" border="0"><tr><td style="padding-right: 10px; padding-left: 10px; padding-top: 10px; padding-bottom: 10px; font-family: Arial, sans-serif"><![endif]-->
+											<div
+												style="color:<%= @styling.text_color %>;font-family:Arial, 'Helvetica Neue', Helvetica, sans-serif;line-height:120%;padding-top:10px;padding-right:10px;padding-bottom:10px;padding-left:10px;">
+												<div
+													style="font-family: Arial, 'Helvetica Neue', Helvetica, sans-serif; font-size: 12px; line-height: 14px; color: <%= @styling.text_color %>;">
+													<p style="font-size: 14px; line-height: 19px; margin: 0;"><span
+															style="font-size: 16px; color: <%= @styling.text_color %>;"><%= from.name %></span></p>
+													<p style="font-size: 14px; line-height: 19px; margin: 0;"><span
+															style="font-size: 16px;"><%= link "@" <> from.nickname, style: "color: #{@styling.link_color};text-decoration: none;", to: mention.activity.actor %></span></p>
+												</div>
+											</div>
+											<!--[if mso]></td></tr></table><![endif]-->
+											<!--[if (!mso)&(!IE)]><!-->
+										</div>
+										<!--<![endif]-->
+									</div>
+								</div>
+								<!--[if (mso)|(IE)]></td></tr></table><![endif]-->
+								<!--[if (mso)|(IE)]></td></tr></table></td></tr></table><![endif]-->
+							</div>
+						</div>
+					</div>
+					<%# user card END %>
+
+					<div style="background-color:transparent;">
+						<div class="block-grid"
+							style="Margin: 0 auto; min-width: 320px; max-width: 590px; overflow-wrap: break-word; word-wrap: break-word; word-break: break-word; background-color: <%= @styling.content_background_color%>;">
+							<div style="border-collapse: collapse;display: table;width: 100%;background-color:<%= @styling.content_background_color%>;">
+								<!--[if (mso)|(IE)]><table width="100%" cellpadding="0" cellspacing="0" border="0" style="background-color:transparent;"><tr><td align="center"><table cellpadding="0" cellspacing="0" border="0" style="width:590px"><tr class="layout-full-width" style="background-color:<%= @styling.content_background_color%>"><![endif]-->
+								<!--[if (mso)|(IE)]><td align="center" width="590" style="background-color:<%= @styling.content_background_color%>;width:590px; border-top: 0px solid transparent; border-left: 0px solid transparent; border-bottom: 0px solid transparent; border-right: 0px solid transparent;" valign="top"><table width="100%" cellpadding="0" cellspacing="0" border="0"><tr><td style="padding-right: 15px; padding-left: 15px; padding-top:5px; padding-bottom:5px;"><![endif]-->
+								<div class="col num12"
+									style="min-width: 320px; max-width: 590px; display: table-cell; vertical-align: top; width: 590px;">
+									<div style="width:100% !important;">
+										<!--[if (!mso)&(!IE)]><!-->
+										<div
+											style="border-top:0px solid transparent; border-left:0px solid transparent; border-bottom:0px solid transparent; border-right:0px solid transparent; padding-top:5px; padding-bottom:5px; padding-right: 15px; padding-left: 15px;">
+											<!--<![endif]-->
+											<!--[if mso]><table width="100%" cellpadding="0" cellspacing="0" border="0"><tr><td style="padding-right: 10px; padding-left: 10px; padding-top: 10px; padding-bottom: 10px; font-family: Arial, sans-serif"><![endif]-->
+											<div
+												style="color:<%= @styling.text_color %>;font-family:Arial, 'Helvetica Neue', Helvetica, sans-serif;line-height:120%;padding-top:10px;padding-right:10px;padding-bottom:10px;padding-left:10px;">
+												<div
+													style="font-family: Arial, 'Helvetica Neue', Helvetica, sans-serif; font-size: 12px; line-height: 14px; color: <%= @styling.text_color %>;">
+													<span style="font-size: 16px; line-height: 19px;"><%= raw object.data["content"] %></span></div>
+											</div>
+											<!--[if mso]></td></tr></table><![endif]-->
+											<!--[if mso]><table width="100%" cellpadding="0" cellspacing="0" border="0"><tr><td style="padding-right: 10px; padding-left: 15px; padding-top: 10px; padding-bottom: 10px; font-family: Arial, sans-serif"><![endif]-->
+											<div
+												style="color:<%= @styling.text_muted_color %>;font-family:Arial, 'Helvetica Neue', Helvetica, sans-serif;line-height:120%;padding-top:10px;padding-right:10px;padding-bottom:10px;padding-left:15px;">
+												<div
+													style="font-family: Arial, 'Helvetica Neue', Helvetica, sans-serif; font-size: 12px; line-height: 14px; color: <%= @styling.text_muted_color %>;">
+													<p style="font-size: 14px; line-height: 16px; margin: 0;"><%= format_date object.data["published"] %></p>
+												</div>
+											</div>
+											<!--[if mso]></td></tr></table><![endif]-->
+											<!--[if (!mso)&(!IE)]><!-->
+										</div>
+										<!--<![endif]-->
+									</div>
+								</div>
+								<!--[if (mso)|(IE)]></td></tr></table><![endif]-->
+								<!--[if (mso)|(IE)]></td></tr></table></td></tr></table><![endif]-->
+							</div>
+						</div>
+					</div>
+					<%# mention END %>
+          <% end %>
+
+          <%# divider start %>
+					<div style="background-color:transparent;">
+						<div class="block-grid"
+							style="Margin: 0 auto; min-width: 320px; max-width: 590px; overflow-wrap: break-word; word-wrap: break-word; word-break: break-word; background-color: <%= @styling.content_background_color%>;">
+							<div style="border-collapse: collapse;display: table;width: 100%;background-color:<%= @styling.content_background_color%>;">
+								<!--[if (mso)|(IE)]><table width="100%" cellpadding="0" cellspacing="0" border="0" style="background-color:transparent;"><tr><td align="center"><table cellpadding="0" cellspacing="0" border="0" style="width:590px"><tr class="layout-full-width" style="background-color:<%= @styling.content_background_color%>"><![endif]-->
+								<!--[if (mso)|(IE)]><td align="center" width="590" style="background-color:<%= @styling.content_background_color%>;width:590px; border-top: 0px solid transparent; border-left: 0px solid transparent; border-bottom: 0px solid transparent; border-right: 0px solid transparent;" valign="top"><table width="100%" cellpadding="0" cellspacing="0" border="0"><tr><td style="padding-right: 0px; padding-left: 0px; padding-top:5px; padding-bottom:5px;"><![endif]-->
+								<div class="col num12"
+									style="min-width: 320px; max-width: 590px; display: table-cell; vertical-align: top; width: 590px;">
+									<div style="width:100% !important;">
+										<!--[if (!mso)&(!IE)]><!-->
+										<div
+											style="border-top:0px solid transparent; border-left:0px solid transparent; border-bottom:0px solid transparent; border-right:0px solid transparent; padding-top:5px; padding-bottom:5px; padding-right: 0px; padding-left: 0px;">
+											<!--<![endif]-->
+											<table border="0" cellpadding="0" cellspacing="0" class="divider" role="presentation"
+												style="table-layout: fixed; vertical-align: top; border-spacing: 0; border-collapse: collapse; mso-table-lspace: 0pt; mso-table-rspace: 0pt; min-width: 100%; -ms-text-size-adjust: 100%; -webkit-text-size-adjust: 100%;"
+												valign="top" width="100%">
+												<tbody>
+													<tr style="vertical-align: top;" valign="top">
+														<td class="divider_inner"
+															style="word-break: break-word; vertical-align: top; min-width: 100%; -ms-text-size-adjust: 100%; -webkit-text-size-adjust: 100%; padding-top: 10px; padding-right: 10px; padding-bottom: 10px; padding-left: 10px;"
+															valign="top">
+															<table align="center" border="0" cellpadding="0" cellspacing="0" class="divider_content"
+																height="0" role="presentation"
+																style="table-layout: fixed; vertical-align: top; border-spacing: 0; border-collapse: collapse; mso-table-lspace: 0pt; mso-table-rspace: 0pt; width: 100%; border-top: 1px solid <%= @styling.text_color %>; height: 0px;"
+																valign="top" width="100%">
+																<tbody>
+																	<tr style="vertical-align: top;" valign="top">
+																		<td height="0"
+																			style="word-break: break-word; vertical-align: top; -ms-text-size-adjust: 100%; -webkit-text-size-adjust: 100%;"
+																			valign="top"><span></span></td>
+																	</tr>
+																</tbody>
+															</table>
+														</td>
+													</tr>
+												</tbody>
+											</table>
+											<!--[if (!mso)&(!IE)]><!-->
+										</div>
+										<!--<![endif]-->
+									</div>
+								</div>
+								<!--[if (mso)|(IE)]></td></tr></table><![endif]-->
+								<!--[if (mso)|(IE)]></td></tr></table></td></tr></table><![endif]-->
+							</div>
+						</div>
+					</div>
+
+          <%# divider end %>
+
+
+					<div style="background-color:transparent;">
+						<div class="block-grid"
+							style="Margin: 0 auto; min-width: 320px; max-width: 590px; overflow-wrap: break-word; word-wrap: break-word; word-break: break-word; background-color: <%= @styling.content_background_color%>;">
+							<div style="border-collapse: collapse;display: table;width: 100%;background-color:<%= @styling.content_background_color%>;">
+								<!--[if (mso)|(IE)]><table width="100%" cellpadding="0" cellspacing="0" border="0" style="background-color:transparent;"><tr><td align="center"><table cellpadding="0" cellspacing="0" border="0" style="width:590px"><tr class="layout-full-width" style="background-color:<%= @styling.content_background_color%>"><![endif]-->
+								<!--[if (mso)|(IE)]><td align="center" width="590" style="background-color:<%= @styling.content_background_color%>;width:590px; border-top: 0px solid transparent; border-left: 0px solid transparent; border-bottom: 0px solid transparent; border-right: 0px solid transparent;" valign="top"><table width="100%" cellpadding="0" cellspacing="0" border="0"><tr><td style="padding-right: 0px; padding-left: 0px; padding-top:5px; padding-bottom:5px;"><![endif]-->
+								<div class="col num12"
+									style="min-width: 320px; max-width: 590px; display: table-cell; vertical-align: top; width: 590px;">
+									<div style="width:100% !important;">
+										<!--[if (!mso)&(!IE)]><!-->
+										<div
+											style="border-top:0px solid transparent; border-left:0px solid transparent; border-bottom:0px solid transparent; border-right:0px solid transparent; padding-top:5px; padding-bottom:5px; padding-right: 0px; padding-left: 0px;">
+											<!--<![endif]-->
+											<!--[if mso]><table width="100%" cellpadding="0" cellspacing="0" border="0"><tr><td style="padding-right: 10px; padding-left: 10px; padding-top: 10px; padding-bottom: 10px; font-family: Arial, sans-serif"><![endif]-->
+											<div
+												style="color:<%= @styling.text_color %>;font-family:Arial, 'Helvetica Neue', Helvetica, sans-serif;line-height:120%;padding-top:10px;padding-right:10px;padding-bottom:10px;padding-left:10px;">
+												<p
+													style="font-size: 12px; line-height: 16px; text-align: center; color: <%= @styling.text_color %>; font-family: Arial, 'Helvetica Neue', Helvetica, sans-serif; margin: 0;">
+													<span style="font-size: 14px;">You have received this email because you have signed up to receive digest emails from <b><%= @instance %></b> Pleroma instance.</span></p>
+												<p
+													style="font-size: 12px; line-height: 14px; text-align: center; color: <%= @styling.text_color %>; font-family: Arial, 'Helvetica Neue', Helvetica, sans-serif; margin: 0;">
+													 </p>
+												<p
+													style="font-size: 12px; line-height: 16px; text-align: center; color: <%= @styling.text_color %>; font-family: Arial, 'Helvetica Neue', Helvetica, sans-serif; margin: 0;">
+													<span style="font-size: 14px;">The email address you are subscribed as is <a href="mailto:<%= @user.email %>" style="color: <%= @styling.link_color %>;text-decoration: none;"><%= @user.email %></a>. </span></p>
+												<p
+													style="font-size: 12px; line-height: 16px; text-align: center; color: <%= @styling.text_color %>; font-family: Arial, 'Helvetica Neue', Helvetica, sans-serif; margin: 0;">
+													<span style="font-size: 14px;">To unsubscribe, please go <%= link "here", style: "color: #{@styling.link_color};text-decoration: none;", to: @unsubscribe_link %>.</span></p>
+											</div>
+											<!--[if mso]></td></tr></table><![endif]-->
+											<!--[if (!mso)&(!IE)]><!-->
+										</div>
+										<!--<![endif]-->
+									</div>
+								</div>
+								<!--[if (mso)|(IE)]></td></tr></table><![endif]-->
+								<!--[if (mso)|(IE)]></td></tr></table></td></tr></table><![endif]-->
+							</div>
+						</div>
+					</div>
+					<!--[if (mso)|(IE)]></td></tr></table><![endif]-->
+				</td>
+			</tr>
+		</tbody>
+	</table>
+	<!--[if (IE)]></div><![endif]-->
+</body>
+
+</html>
diff --git a/lib/pleroma/workers/cron/email_mentions_worker.ex b/lib/pleroma/workers/cron/email_mentions_worker.ex
new file mode 100644
index 000000000..791f09c28
--- /dev/null
+++ b/lib/pleroma/workers/cron/email_mentions_worker.ex
@@ -0,0 +1,67 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Workers.Cron.EmailMentionsWorker do
+  use Pleroma.Workers.WorkerHelper, queue: "email_mentions"
+
+  @impl true
+  def perform(%Job{args: %{"op" => "email_mentions", "user_id" => id}}) do
+    user = Pleroma.User.get_cached_by_id(id)
+
+    timeframe =
+      Pleroma.Config.get([__MODULE__, :timeframe], 30)
+      |> :timer.minutes()
+
+    max_inserted_at =
+      NaiveDateTime.utc_now()
+      |> NaiveDateTime.add(-timeframe, :millisecond)
+      |> NaiveDateTime.truncate(:second)
+
+    mentions = Pleroma.Notification.for_user_unread_mentions(user, max_inserted_at)
+
+    if mentions != [] do
+      user
+      |> Pleroma.Emails.UserEmail.mentions_notification_email(mentions)
+      |> Pleroma.Emails.Mailer.deliver()
+      |> case do
+        {:ok, _} ->
+          Enum.map(mentions, & &1.id)
+
+        _ ->
+          []
+      end
+      |> Pleroma.Notification.update_notified_at()
+    end
+
+    :ok
+  end
+
+  @impl true
+  def perform(_) do
+    config = Pleroma.Config.get(__MODULE__, [])
+
+    if Keyword.get(config, :enabled, false) do
+      timeframe = Keyword.get(config, :timeframe, 30)
+      period = timeframe * 60
+
+      max_at =
+        NaiveDateTime.utc_now()
+        |> NaiveDateTime.add(-:timer.minutes(timeframe), :millisecond)
+        |> NaiveDateTime.truncate(:second)
+
+      Pleroma.Notification.users_ids_with_unread_mentions(max_at)
+      |> Enum.each(&insert_job(&1, unique: [period: period]))
+    end
+
+    :ok
+  end
+
+  defp insert_job(user_id, args) do
+    Pleroma.Workers.Cron.EmailMentionsWorker.enqueue(
+      "email_mentions",
+      %{"user_id" => user_id},
+      args
+    )
+  end
+end
diff --git a/priv/repo/migrations/20201128144004_change_user_email_notifications_setting.exs b/priv/repo/migrations/20201128144004_change_user_email_notifications_setting.exs
new file mode 100644
index 000000000..6ccedfbd0
--- /dev/null
+++ b/priv/repo/migrations/20201128144004_change_user_email_notifications_setting.exs
@@ -0,0 +1,32 @@
+defmodule Pleroma.Repo.Migrations.ChangeUserEmailNotificationsSetting do
+  use Ecto.Migration
+
+  import Ecto.Query, only: [from: 2]
+
+  def up, do: stream_and_update_users(:up)
+
+  def down, do: stream_and_update_users(:down)
+
+  defp stream_and_update_users(direction) do
+    from(u in Pleroma.User, select: [:id, :email_notifications])
+    |> Pleroma.Repo.stream()
+    |> Stream.each(&update_user_email_notifications_settings(&1, direction))
+    |> Stream.run()
+  end
+
+  defp update_user_email_notifications_settings(user, direction) do
+    email_notifications = change_email_notifications(user.email_notifications, direction)
+
+    user
+    |> Ecto.Changeset.change(email_notifications: email_notifications)
+    |> Pleroma.Repo.update()
+  end
+
+  defp change_email_notifications(email_notifications, :up) do
+    Map.put(email_notifications, "notifications", ["mention", "pleroma:chat_mention"])
+  end
+
+  defp change_email_notifications(email_notifications, :down) do
+    Map.delete(email_notifications, "notifications")
+  end
+end
diff --git a/priv/repo/migrations/20201214160053_add_notified_at_to_notifications.exs b/priv/repo/migrations/20201214160053_add_notified_at_to_notifications.exs
new file mode 100644
index 000000000..4e9255e09
--- /dev/null
+++ b/priv/repo/migrations/20201214160053_add_notified_at_to_notifications.exs
@@ -0,0 +1,15 @@
+defmodule Pleroma.Repo.Migrations.AddNotifiedAtToNotifications do
+  use Ecto.Migration
+
+  def up do
+    alter table(:notifications) do
+      add_if_not_exists(:notified_at, :naive_datetime)
+    end
+  end
+
+  def down do
+    alter table(:notifications) do
+      remove_if_exists(:notified_at, :naive_datetime)
+    end
+  end
+end
diff --git a/priv/repo/migrations/20201221060622_fill_notifications_notified_at.exs b/priv/repo/migrations/20201221060622_fill_notifications_notified_at.exs
new file mode 100644
index 000000000..f02899ab7
--- /dev/null
+++ b/priv/repo/migrations/20201221060622_fill_notifications_notified_at.exs
@@ -0,0 +1,23 @@
+defmodule Pleroma.Repo.Migrations.FillNotificationsNotifiedAt do
+  use Ecto.Migration
+
+  import Ecto.Query, only: [from: 2]
+
+  @types ["mention", "pleroma:chat_mention"]
+
+  def up do
+    from(n in "notifications",
+      where: is_nil(n.notified_at),
+      where: n.type in ^@types
+    )
+    |> Pleroma.Repo.update_all(set: [notified_at: NaiveDateTime.utc_now()])
+  end
+
+  def down do
+    from(n in "notifications",
+      where: not is_nil(n.notified_at),
+      where: n.type in ^@types
+    )
+    |> Pleroma.Repo.update_all(set: [notified_at: nil])
+  end
+end
diff --git a/priv/repo/migrations/20201222052839_add_index_to_notifications.exs b/priv/repo/migrations/20201222052839_add_index_to_notifications.exs
new file mode 100644
index 000000000..5b0420296
--- /dev/null
+++ b/priv/repo/migrations/20201222052839_add_index_to_notifications.exs
@@ -0,0 +1,7 @@
+defmodule Pleroma.Repo.Migrations.AddIndexToNotifications do
+  use Ecto.Migration
+
+  def change do
+    create_if_not_exists(index(:notifications, [:seen, :notified_at, :type, :inserted_at]))
+  end
+end
diff --git a/test/mix/tasks/pleroma/user_test.exs b/test/mix/tasks/pleroma/user_test.exs
index a2178bbd1..5b170b57c 100644
--- a/test/mix/tasks/pleroma/user_test.exs
+++ b/test/mix/tasks/pleroma/user_test.exs
@@ -617,4 +617,93 @@ defmodule Mix.Tasks.Pleroma.UserTest do
       assert mod.is_confirmed
     end
   end
+
+  describe "email_notifications" do
+    setup do
+      user = insert(:user, email_notifications: %{"digest" => false, "notifications" => []})
+      [user: user]
+    end
+
+    test "no changes error", %{user: user} do
+      Mix.Tasks.Pleroma.User.run(["email_notifications", user.nickname])
+
+      assert_received {:mix_shell, :error, ["No changes passed"]}
+    end
+
+    test "user not found" do
+      Mix.Tasks.Pleroma.User.run(["email_notifications", "nickname", "--digest"])
+
+      assert_received {:mix_shell, :error, ["No local user nickname"]}
+    end
+
+    test "all settings", %{user: user} do
+      assert user.email_notifications == %{"digest" => false, "notifications" => []}
+
+      Mix.Tasks.Pleroma.User.run([
+        "email_notifications",
+        user.nickname,
+        "--digest",
+        "-n",
+        "mention,pleroma:chat_mention,"
+      ])
+
+      from_db = User.get_cached_by_nickname(user.nickname)
+
+      assert from_db.email_notifications == %{
+               "digest" => true,
+               "notifications" => ["mention", "pleroma:chat_mention"]
+             }
+
+      Mix.Tasks.Pleroma.User.run([
+        "email_notifications",
+        user.nickname,
+        "--no-digest",
+        "-n",
+        "off"
+      ])
+
+      from_db = User.get_cached_by_nickname(user.nickname)
+      assert from_db.email_notifications == %{"digest" => false, "notifications" => []}
+    end
+
+    test "partial update", %{user: user} do
+      Mix.Tasks.Pleroma.User.run([
+        "email_notifications",
+        user.nickname,
+        "--digest"
+      ])
+
+      from_db = User.get_cached_by_nickname(user.nickname)
+      assert from_db.email_notifications == %{"digest" => true, "notifications" => []}
+
+      Mix.Tasks.Pleroma.User.run([
+        "email_notifications",
+        user.nickname,
+        "--no-digest"
+      ])
+
+      from_db = User.get_cached_by_nickname(user.nickname)
+      assert from_db.email_notifications == %{"digest" => false, "notifications" => []}
+
+      Mix.Tasks.Pleroma.User.run([
+        "email_notifications",
+        user.nickname,
+        "-n",
+        "mention"
+      ])
+
+      from_db = User.get_cached_by_nickname(user.nickname)
+      assert from_db.email_notifications == %{"digest" => false, "notifications" => ["mention"]}
+
+      Mix.Tasks.Pleroma.User.run([
+        "email_notifications",
+        user.nickname,
+        "-n",
+        "off"
+      ])
+
+      from_db = User.get_cached_by_nickname(user.nickname)
+      assert from_db.email_notifications == %{"digest" => false, "notifications" => []}
+    end
+  end
 end
diff --git a/test/pleroma/notification_test.exs b/test/pleroma/notification_test.exs
index abf1b0410..28ac57ed2 100644
--- a/test/pleroma/notification_test.exs
+++ b/test/pleroma/notification_test.exs
@@ -1155,4 +1155,94 @@ defmodule Pleroma.NotificationTest do
       assert length(Notification.for_user(user)) == 1
     end
   end
+
+  describe "users_ids_with_unread_mentions/0" do
+    setup do
+      now = NaiveDateTime.utc_now()
+      inserted_at = NaiveDateTime.add(now, -61)
+
+      insert(:notification, seen: true, type: "mention", inserted_at: inserted_at)
+      insert(:notification, type: "follow", inserted_at: inserted_at)
+      insert(:notification, type: "mention")
+      mention = insert(:notification, type: "mention", inserted_at: inserted_at)
+      chat_mention = insert(:notification, type: "pleroma:chat_mention", inserted_at: inserted_at)
+
+      insert(:notification,
+        type: "mention",
+        notified_at: now,
+        inserted_at: inserted_at
+      )
+
+      [
+        mention: mention,
+        chat_mention: chat_mention,
+        now: now
+      ]
+    end
+
+    test "when mentions are in the timeframe", %{
+      mention: mention,
+      chat_mention: chat_mention,
+      now: now
+    } do
+      assert Notification.users_ids_with_unread_mentions(NaiveDateTime.add(now, -60)) == [
+               mention.user_id,
+               chat_mention.user_id
+             ]
+    end
+
+    test "when mentions are out of the timeframe", %{now: now} do
+      assert Notification.users_ids_with_unread_mentions(NaiveDateTime.add(now, -62)) == []
+    end
+  end
+
+  describe "for_user_unread_mentions/1" do
+    setup do
+      [user, muted, blocked] = insert_list(3, :user)
+      {:ok, _} = User.mute(user, muted)
+      {:ok, _} = CommonAPI.post(muted, %{status: "hey @#{user.nickname}"})
+      {:ok, _} = User.block(user, blocked)
+      {:ok, _} = CommonAPI.post(blocked, %{status: "hey @#{user.nickname}"})
+
+      insert(:notification, type: "mention", user: user)
+      insert(:notification, type: "pleroma:chat_mention", user: user)
+
+      inserted_at = NaiveDateTime.add(NaiveDateTime.utc_now(), -61)
+      Repo.update_all(Notification, set: [inserted_at: inserted_at])
+      [user: user, max: NaiveDateTime.add(NaiveDateTime.utc_now(), -60)]
+    end
+
+    test "when mentions are in timeframe, exclude blocks and mutes", %{user: user, max: max} do
+      assert Repo.aggregate(Notification, :count, :id) == 4
+      assert user |> Notification.for_user_unread_mentions(max) |> length() == 2
+    end
+
+    test "when mentions are out of the timeframe, exclude blocks and mutes", %{
+      user: user,
+      max: max
+    } do
+      assert Notification.for_user_unread_mentions(user, NaiveDateTime.add(max, -2)) == []
+    end
+
+    test "respect user notification types", %{user: user, max: max} do
+      user =
+        Map.update!(
+          user,
+          :email_notifications,
+          &Map.put(&1, "notifications", ["pleroma:chat_mention"])
+        )
+
+      [mention] = Notification.for_user_unread_mentions(user, max)
+      assert mention.type == "pleroma:chat_mention"
+    end
+  end
+
+  test "update_notified_at/1" do
+    notifs = insert_list(2, :notification)
+
+    assert {2, nil} =
+             notifs
+             |> Enum.map(& &1.id)
+             |> Notification.update_notified_at()
+  end
 end
diff --git a/test/pleroma/user_test.exs b/test/pleroma/user_test.exs
index d81c1b8eb..060d14101 100644
--- a/test/pleroma/user_test.exs
+++ b/test/pleroma/user_test.exs
@@ -2239,18 +2239,19 @@ defmodule Pleroma.UserTest do
     end
   end
 
-  describe "update_email_notifications/2" do
-    setup do
-      user = insert(:user, email_notifications: %{"digest" => true})
-
-      {:ok, user: user}
-    end
-
-    test "Notifications are updated", %{user: user} do
-      true = user.email_notifications["digest"]
-      assert {:ok, result} = User.update_email_notifications(user, %{"digest" => false})
-      assert result.email_notifications["digest"] == false
-    end
+  test "update_email_notifications/2" do
+    user = insert(:user, email_notifications: %{"digest" => false, "notifications" => []})
+    assert user.email_notifications["digest"] == false
+    assert user.email_notifications["notifications"] == []
+
+    assert {:ok, result} =
+             User.update_email_notifications(user, %{
+               "digest" => true,
+               "notifications" => ["mention", "pleroma:chat_mention"]
+             })
+
+    assert result.email_notifications["digest"]
+    assert result.email_notifications["notifications"] == ["mention", "pleroma:chat_mention"]
   end
 
   describe "local_nickname/1" do
diff --git a/test/pleroma/web/mastodon_api/update_credentials_test.exs b/test/pleroma/web/mastodon_api/update_credentials_test.exs
index cfbe6cf0e..d24264fea 100644
--- a/test/pleroma/web/mastodon_api/update_credentials_test.exs
+++ b/test/pleroma/web/mastodon_api/update_credentials_test.exs
@@ -206,6 +206,38 @@ defmodule Pleroma.Web.MastodonAPI.UpdateCredentialsTest do
       assert user_data["source"]["pleroma"]["no_rich_text"] == true
     end
 
+    test "updates the user's email_notifications setting", %{conn: conn} do
+      resp =
+        patch(conn, "/api/v1/accounts/update_credentials", %{
+          email_notifications: %{
+            "digest" => true,
+            "notifications" => []
+          }
+        })
+
+      assert user_data = json_response_and_validate_schema(resp, 200)
+
+      assert user_data["pleroma"]["email_notifications"] == %{
+               "digest" => true,
+               "notifications" => []
+             }
+
+      resp =
+        patch(conn, "/api/v1/accounts/update_credentials", %{
+          email_notifications: %{
+            "digest" => false,
+            "notifications" => ["mention", "pleroma:chat_mention"]
+          }
+        })
+
+      assert user_data = json_response_and_validate_schema(resp, 200)
+
+      assert user_data["pleroma"]["email_notifications"] == %{
+               "digest" => false,
+               "notifications" => ["mention", "pleroma:chat_mention"]
+             }
+    end
+
     test "updates the user's name", %{conn: conn} do
       conn =
         patch(conn, "/api/v1/accounts/update_credentials", %{"display_name" => "markorepairs"})
diff --git a/test/pleroma/web/mastodon_api/views/account_view_test.exs b/test/pleroma/web/mastodon_api/views/account_view_test.exs
index 5373a17c3..d69224319 100644
--- a/test/pleroma/web/mastodon_api/views/account_view_test.exs
+++ b/test/pleroma/web/mastodon_api/views/account_view_test.exs
@@ -90,7 +90,11 @@ defmodule Pleroma.Web.MastodonAPI.AccountViewTest do
         hide_follows_count: false,
         relationship: %{},
         skip_thread_containment: false,
-        accepts_chat_messages: nil
+        accepts_chat_messages: nil,
+        email_notifications: %{
+          "digest" => false,
+          "notifications" => ["mention", "pleroma:chat_mention"]
+        }
       }
     }
 
@@ -190,7 +194,11 @@ defmodule Pleroma.Web.MastodonAPI.AccountViewTest do
         hide_follows_count: false,
         relationship: %{},
         skip_thread_containment: false,
-        accepts_chat_messages: nil
+        accepts_chat_messages: nil,
+        email_notifications: %{
+          "digest" => false,
+          "notifications" => ["mention", "pleroma:chat_mention"]
+        }
       }
     }
 
diff --git a/test/pleroma/workers/cron/email_mentions_worker_test.exs b/test/pleroma/workers/cron/email_mentions_worker_test.exs
new file mode 100644
index 000000000..3ffe2561d
--- /dev/null
+++ b/test/pleroma/workers/cron/email_mentions_worker_test.exs
@@ -0,0 +1,107 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Workers.Cron.EmailMentionsWorkerTest do
+  use Pleroma.DataCase
+  use Oban.Testing, repo: Pleroma.Repo
+
+  import Pleroma.Factory
+  import Swoosh.TestAssertions
+
+  alias Pleroma.Workers.Cron.EmailMentionsWorker
+
+  setup do
+    clear_config(EmailMentionsWorker, enabled: true, timeframe: 1)
+    inserted_at = NaiveDateTime.add(NaiveDateTime.utc_now(), -61)
+
+    n1 = insert(:notification, seen: true, type: "mention", inserted_at: inserted_at)
+    n2 = insert(:notification, type: "follow", inserted_at: inserted_at)
+    n3 = insert(:notification, type: "mention")
+    mention = insert(:notification, type: "mention", inserted_at: inserted_at)
+    chat_mention = insert(:notification, type: "pleroma:chat_mention", inserted_at: inserted_at)
+
+    n4 =
+      insert(:notification,
+        type: "mention",
+        notified_at: NaiveDateTime.utc_now(),
+        inserted_at: inserted_at
+      )
+
+    [
+      mention: mention,
+      chat_mention: chat_mention,
+      other_user_ids: [n1.user_id, n2.user_id, n3.user_id, n4.user_id]
+    ]
+  end
+
+  test "creates jobs for users", %{
+    mention: mention,
+    chat_mention: chat_mention,
+    other_user_ids: ids
+  } do
+    assert EmailMentionsWorker.perform(%{}) == :ok
+
+    assert_enqueued(
+      worker: EmailMentionsWorker,
+      args: %{op: "email_mentions", user_id: mention.user_id}
+    )
+
+    assert_enqueued(
+      worker: EmailMentionsWorker,
+      args: %{op: "email_mentions", user_id: chat_mention.user_id}
+    )
+
+    Enum.each(ids, fn id ->
+      refute_enqueued(worker: EmailMentionsWorker, args: %{op: "email_mentions", user_id: id})
+    end)
+
+    assert Repo.aggregate(Oban.Job, :count, :id) == 2
+
+    EmailMentionsWorker.perform(%{})
+
+    # no duplicates
+    assert Repo.aggregate(Oban.Job, :count, :id) == 2
+  end
+
+  test "doesn't create jobs for users without emails", %{mention: mention} do
+    %{user: user} = Repo.preload(mention, :user)
+
+    user
+    |> Ecto.Changeset.change(email: nil)
+    |> Repo.update()
+
+    assert EmailMentionsWorker.perform(%{}) == :ok
+
+    refute_enqueued(
+      worker: EmailMentionsWorker,
+      args: %{op: "email_mentions", user_id: mention.user_id}
+    )
+  end
+
+  test "sends emails", %{mention: mention, chat_mention: chat_mention} do
+    assert EmailMentionsWorker.perform(%{}) == :ok
+
+    mention = Repo.preload(mention, :user)
+
+    assert EmailMentionsWorker.perform(%Oban.Job{
+             args: %{"op" => "email_mentions", "user_id" => mention.user_id}
+           }) == :ok
+
+    assert_email_sent(
+      to: {mention.user.name, mention.user.email},
+      html_body: ~r/here is what you've missed!/i
+    )
+
+    chat_mention = Repo.preload(chat_mention, :user)
+
+    assert EmailMentionsWorker.perform(%Oban.Job{
+             args: %{"op" => "email_mentions", "user_id" => chat_mention.user_id}
+           }) == :ok
+
+    assert_email_sent(
+      to: {chat_mention.user.name, chat_mention.user.email},
+      html_body: ~r/here is what you've missed!/i
+    )
+  end
+end
diff --git a/test/support/factory.ex b/test/support/factory.ex
index 5c4e65c81..136435396 100644
--- a/test/support/factory.ex
+++ b/test/support/factory.ex
@@ -469,7 +469,8 @@ defmodule Pleroma.Factory do
 
   def notification_factory do
     %Pleroma.Notification{
-      user: build(:user)
+      user: build(:user),
+      activity: build(:note_activity)
     }
   end