Merge branch 'feature/new-registrations-digest' into 'develop'

New users digest email

Closes #1514

See merge request pleroma/pleroma!2128

11 files changed, 506 insertions, 2 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3e838983b..ce0f584cb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -72,6 +72,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - User notification settings: Add `privacy_option` option.
 - Support for custom Elixir modules (such as MRF policies)
 - User settings: Add _This account is a_ option.
+- A new users admin digest email
 - OAuth: admin scopes support (relevant setting: `[:auth, :enforce_oauth_admin_scope_usage]`).
 <details>
   <summary>API Changes</summary>
diff --git a/config/config.exs b/config/config.exs
index ccc0c4e52..664572cf3 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -480,13 +480,15 @@ config :pleroma, Oban,
     transmogrifier: 20,
     scheduled_activities: 10,
     background: 5,
-    attachments_cleanup: 5
+    attachments_cleanup: 5,
+    new_users_digest: 1
   ],
   crontab: [
     {"0 0 * * *", Pleroma.Workers.Cron.ClearOauthTokenWorker},
     {"0 * * * *", Pleroma.Workers.Cron.StatsWorker},
     {"* * * * *", Pleroma.Workers.Cron.PurgeExpiredActivitiesWorker},
-    {"0 0 * * 0", Pleroma.Workers.Cron.DigestEmailsWorker}
+    {"0 0 * * 0", Pleroma.Workers.Cron.DigestEmailsWorker},
+    {"0 0 * * *", Pleroma.Workers.Cron.NewUsersDigestWorker}
   ]
 
 config :pleroma, :workers,
@@ -560,6 +562,8 @@ config :pleroma, Pleroma.Emails.UserEmail,
     text_muted_color: "#b9b9ba"
   }
 
+config :pleroma, Pleroma.Emails.NewUsersDigestEmail, enabled: false
+
 config :prometheus, Pleroma.Web.Endpoint.MetricsExporter, path: "/api/pleroma/app_metrics"
 
 config :pleroma, Pleroma.ScheduledActivity,
diff --git a/config/description.exs b/config/description.exs
index 0c0f4af3c..53d980c83 100644
--- a/config/description.exs
+++ b/config/description.exs
@@ -2504,6 +2504,20 @@ config :pleroma, :config_description, [
   },
   %{
     group: :pleroma,
+    key: Pleroma.Emails.NewUsersDigestEmail,
+    type: :group,
+    description: "New users admin email digest",
+    children: [
+      %{
+        key: :enabled,
+        type: :boolean,
+        description: "enables new users admin digest email when `true`",
+        suggestions: [false]
+      }
+    ]
+  },
+  %{
+    group: :pleroma,
     key: :oauth2,
     type: :group,
     description: "Configure OAuth 2 provider capabilities",
diff --git a/config/test.exs b/config/test.exs
index 078c46205..6bea09380 100644
--- a/config/test.exs
+++ b/config/test.exs
@@ -94,6 +94,8 @@ config :pleroma, Pleroma.ReverseProxy.Client, Pleroma.ReverseProxy.ClientMock
 
 config :pleroma, :modules, runtime_dir: "test/fixtures/modules"
 
+config :pleroma, Pleroma.Emails.NewUsersDigestEmail, enabled: true
+
 if File.exists?("./config/test.secret.exs") do
   import_config "test.secret.exs"
 else
diff --git a/docs/configuration/cheatsheet.md b/docs/configuration/cheatsheet.md
index 2bd935983..c9559fe85 100644
--- a/docs/configuration/cheatsheet.md
+++ b/docs/configuration/cheatsheet.md
@@ -501,6 +501,10 @@ Email notifications settings.
 - `:logo` - a path to a custom logo. Set it to `nil` to use the default Pleroma logo.
 - `:styling` - a map with color settings for email templates.
 
+### Pleroma.Emails.NewUsersDigestEmail
+
+- `:enabled` - a boolean, enables new users admin digest email when `true`. Defaults to `false`.
+
 ## Background jobs
 
 ### Oban
diff --git a/lib/pleroma/emails/new_users_digest_email.ex b/lib/pleroma/emails/new_users_digest_email.ex
new file mode 100644
index 000000000..7d16b807f
--- /dev/null
+++ b/lib/pleroma/emails/new_users_digest_email.ex
@@ -0,0 +1,32 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Emails.NewUsersDigestEmail do
+  use Phoenix.Swoosh, view: Pleroma.Web.EmailView, layout: {Pleroma.Web.LayoutView, :email_styled}
+
+  defp instance_notify_email do
+    Pleroma.Config.get([:instance, :notify_email]) || Pleroma.Config.get([:instance, :email])
+  end
+
+  def new_users(to, users_and_statuses) do
+    instance_name = Pleroma.Config.get([:instance, :name])
+    styling = Pleroma.Config.get([Pleroma.Emails.UserEmail, :styling])
+
+    logo_url =
+      Pleroma.Web.Endpoint.url() <>
+        Pleroma.Config.get([:frontend_configurations, :pleroma_fe, :logo])
+
+    new()
+    |> to({to.name, to.email})
+    |> from({instance_name, instance_notify_email()})
+    |> subject("#{instance_name} New Users")
+    |> render_body("new_users_digest.html", %{
+      title: "New Users",
+      users_and_statuses: users_and_statuses,
+      instance: instance_name,
+      styling: styling,
+      logo_url: logo_url
+    })
+  end
+end
diff --git a/lib/pleroma/web/templates/email/new_users_digest.html.eex b/lib/pleroma/web/templates/email/new_users_digest.html.eex
new file mode 100644
index 000000000..40d9b8381
--- /dev/null
+++ b/lib/pleroma/web/templates/email/new_users_digest.html.eex
@@ -0,0 +1,158 @@
+<%= for {user, total_statuses, latest_status} <- @users_and_statuses do %>
+	<%# 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="<%= user.name %>" border="0" class="left " src="<%= avatar_url(user) %>"
+									style="text-decoration: none; -ms-interpolation-mode: bicubic; border: 0; height: auto; width: 100%; max-width: 76px; display: block;"
+									title="<%= user.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 %>;"><%= user.name %></span></p>
+									<p style="font-size: 14px; line-height: 19px; margin: 0;"><span
+											style="font-size: 16px;"><%= link "@" <> user.nickname, style: "color: #{@styling.link_color};text-decoration: none;", to: admin_user_url(user) %></span></p>
+									<p style="font-size: 14px; line-height: 19px; margin: 0;"><span
+											style="font-size: 16px;">Total: <%= total_statuses %></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 %>
+
+	<%= if latest_status do %>
+		<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 latest_status.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 latest_status.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>
+	<% 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 %>
+	<%# user card END %>
+<% end %>
diff --git a/lib/pleroma/web/templates/layout/email_styled.html.eex b/lib/pleroma/web/templates/layout/email_styled.html.eex
new file mode 100644
index 000000000..ca2caaf4d
--- /dev/null
+++ b/lib/pleroma/web/templates/layout/email_styled.html.eex
@@ -0,0 +1,193 @@
+<!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]-->
+
+					<%# header %>
+					<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="<%= @logo_url %>"
+													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>
+
+
+					<%# title %>
+					<%= if @title do %>
+						<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 %>;"><%= @title %></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>
+					<% end %>
+					<%= render @view_module, @view_template, assigns %>
+
+				</td>
+			</tr>
+		</tbody>
+	</table>
+	<!--[if (IE)]></div><![endif]-->
+</body>
+
+</html>
diff --git a/lib/pleroma/web/views/email_view.ex b/lib/pleroma/web/views/email_view.ex
index b506a234b..6b0fbe61e 100644
--- a/lib/pleroma/web/views/email_view.ex
+++ b/lib/pleroma/web/views/email_view.ex
@@ -12,4 +12,8 @@ defmodule Pleroma.Web.EmailView do
     |> Timex.parse!("{ISO:Extended:Z}")
     |> Timex.format!("{Mshort} {D}, {YYYY} {h24}:{m}")
   end
+
+  def admin_user_url(%{id: id}) do
+    Pleroma.Web.Endpoint.url() <> "/pleroma/admin/#/users/" <> id
+  end
 end
diff --git a/lib/pleroma/workers/cron/new_users_digest_worker.ex b/lib/pleroma/workers/cron/new_users_digest_worker.ex
new file mode 100644
index 000000000..951c2c054
--- /dev/null
+++ b/lib/pleroma/workers/cron/new_users_digest_worker.ex
@@ -0,0 +1,60 @@
+# 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.NewUsersDigestWorker do
+  alias Pleroma.Activity
+  alias Pleroma.Repo
+  alias Pleroma.User
+
+  import Ecto.Query
+
+  use Pleroma.Workers.WorkerHelper, queue: "new_users_digest"
+
+  @impl Oban.Worker
+  def perform(_args, _job) do
+    if Pleroma.Config.get([Pleroma.Emails.NewUsersDigestEmail, :enabled]) do
+      today = NaiveDateTime.utc_now() |> Timex.beginning_of_day()
+
+      a_day_ago =
+        today
+        |> Timex.shift(days: -1)
+        |> Timex.beginning_of_day()
+
+      users_and_statuses =
+        %{
+          local: true,
+          order_by: :inserted_at
+        }
+        |> User.Query.build()
+        |> where([u], u.inserted_at >= ^a_day_ago and u.inserted_at < ^today)
+        |> Repo.all()
+        |> Enum.map(fn user ->
+          latest_status =
+            Activity
+            |> Activity.Queries.by_actor(user.ap_id)
+            |> Activity.Queries.by_type("Create")
+            |> Activity.with_preloaded_object()
+            |> order_by(desc: :inserted_at)
+            |> limit(1)
+            |> Repo.one()
+
+          total_statuses =
+            Activity
+            |> Activity.Queries.by_actor(user.ap_id)
+            |> Activity.Queries.by_type("Create")
+            |> Repo.aggregate(:count, :id)
+
+          {user, total_statuses, latest_status}
+        end)
+
+      if users_and_statuses != [] do
+        %{is_admin: true}
+        |> User.Query.build()
+        |> Repo.all()
+        |> Enum.map(&Pleroma.Emails.NewUsersDigestEmail.new_users(&1, users_and_statuses))
+        |> Enum.each(&Pleroma.Emails.Mailer.deliver/1)
+      end
+    end
+  end
+end
diff --git a/test/workers/cron/new_users_digest_worker_test.exs b/test/workers/cron/new_users_digest_worker_test.exs
new file mode 100644
index 000000000..2f439c1fe
--- /dev/null
+++ b/test/workers/cron/new_users_digest_worker_test.exs
@@ -0,0 +1,32 @@
+# 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.NewUsersDigestWorkerTest do
+  use Pleroma.DataCase
+  import Pleroma.Factory
+
+  alias Pleroma.Tests.ObanHelpers
+  alias Pleroma.Web.CommonAPI
+  alias Pleroma.Workers.Cron.NewUsersDigestWorker
+
+  test "it sends new users digest emails" do
+    yesterday = NaiveDateTime.utc_now() |> Timex.shift(days: -1)
+    admin = insert(:user, %{is_admin: true})
+    user = insert(:user, %{inserted_at: yesterday})
+    user2 = insert(:user, %{inserted_at: yesterday})
+    CommonAPI.post(user, %{"status" => "cofe"})
+
+    NewUsersDigestWorker.perform(nil, nil)
+    ObanHelpers.perform_all()
+
+    assert_received {:email, email}
+    assert email.to == [{admin.name, admin.email}]
+    assert email.subject == "#{Pleroma.Config.get([:instance, :name])} New Users"
+
+    refute email.html_body =~ admin.nickname
+    assert email.html_body =~ user.nickname
+    assert email.html_body =~ user2.nickname
+    assert email.html_body =~ "cofe"
+  end
+end