diff --git a/lib/pleroma/emails/admin_email.ex b/lib/pleroma/emails/admin_email.ex
index aa0b2a66b..fae7faf00 100644
--- a/lib/pleroma/emails/admin_email.ex
+++ b/lib/pleroma/emails/admin_email.ex
@@ -82,4 +82,18 @@ defmodule Pleroma.Emails.AdminEmail do
     |> subject("#{instance_name()} Report")
     |> html_body(html_body)
   end
+
+  def new_unapproved_registration(to, account) do
+    html_body = """
+    <p>New account for review: <a href="#{user_url(account)}">@#{account.nickname}</a></p>
+    <blockquote>#{account.registration_reason}</blockquote>
+    <a href="#{Pleroma.Web.base_url()}/pleroma/admin">Visit AdminFE</a>
+    """
+
+    new()
+    |> to({to.name, to.email})
+    |> from({instance_name(), instance_notify_email()})
+    |> subject("New account up for review on #{instance_name()} (@#{account.nickname})")
+    |> html_body(html_body)
+  end
 end
diff --git a/lib/pleroma/web/twitter_api/twitter_api.ex b/lib/pleroma/web/twitter_api/twitter_api.ex
index 4ff021b82..2294d9d0d 100644
--- a/lib/pleroma/web/twitter_api/twitter_api.ex
+++ b/lib/pleroma/web/twitter_api/twitter_api.ex
@@ -45,6 +45,7 @@ defmodule Pleroma.Web.TwitterAPI.TwitterAPI do
 
     case User.register(changeset) do
       {:ok, user} ->
+        maybe_notify_admins(user)
         {:ok, user}
 
       {:error, changeset} ->
@@ -57,6 +58,18 @@ defmodule Pleroma.Web.TwitterAPI.TwitterAPI do
     end
   end
 
+  defp maybe_notify_admins(%User{} = account) do
+    if Pleroma.Config.get([:instance, :account_approval_required]) do
+      User.all_superusers()
+      |> Enum.filter(fn user -> not is_nil(user.email) end)
+      |> Enum.each(fn superuser ->
+        superuser
+        |> Pleroma.Emails.AdminEmail.new_unapproved_registration(account)
+        |> Pleroma.Emails.Mailer.deliver_async()
+      end)
+    end
+  end
+
   def password_reset(nickname_or_email) do
     with true <- is_binary(nickname_or_email),
          %User{local: true, email: email} = user when is_binary(email) <-
diff --git a/test/emails/admin_email_test.exs b/test/emails/admin_email_test.exs
index 9082ae5a7..e24231e27 100644
--- a/test/emails/admin_email_test.exs
+++ b/test/emails/admin_email_test.exs
@@ -46,4 +46,24 @@ defmodule Pleroma.Emails.AdminEmailTest do
     assert res.to == [{to_user.name, to_user.email}]
     assert res.from == {config[:name], config[:notify_email]}
   end
+
+  test "new unapproved registration email" do
+    config = Pleroma.Config.get(:instance)
+    to_user = insert(:user)
+    account = insert(:user, registration_reason: "Plz let me in")
+
+    res = AdminEmail.new_unapproved_registration(to_user, account)
+
+    account_url = Helpers.user_feed_url(Pleroma.Web.Endpoint, :feed_redirect, account.id)
+
+    assert res.to == [{to_user.name, to_user.email}]
+    assert res.from == {config[:name], config[:notify_email]}
+    assert res.subject == "New account up for review on #{config[:name]} (@#{account.nickname})"
+
+    assert res.html_body == """
+           <p>New account for review: <a href="#{account_url}">@#{account.nickname}</a></p>
+           <blockquote>Plz let me in</blockquote>
+           <a href="http://localhost:4001/pleroma/admin">Visit AdminFE</a>
+           """
+  end
 end
diff --git a/test/web/twitter_api/twitter_api_test.exs b/test/web/twitter_api/twitter_api_test.exs
index 368533292..df9d59f6a 100644
--- a/test/web/twitter_api/twitter_api_test.exs
+++ b/test/web/twitter_api/twitter_api_test.exs
@@ -4,6 +4,7 @@
 
 defmodule Pleroma.Web.TwitterAPI.TwitterAPITest do
   use Pleroma.DataCase
+  import Pleroma.Factory
   alias Pleroma.Repo
   alias Pleroma.Tests.ObanHelpers
   alias Pleroma.User
@@ -85,6 +86,42 @@ defmodule Pleroma.Web.TwitterAPI.TwitterAPITest do
     )
   end
 
+  test "it sends an admin email if :account_approval_required is specified in instance config" do
+    admin = insert(:user, is_admin: true)
+    setting = Pleroma.Config.get([:instance, :account_approval_required])
+
+    unless setting do
+      Pleroma.Config.put([:instance, :account_approval_required], true)
+      on_exit(fn -> Pleroma.Config.put([:instance, :account_approval_required], setting) end)
+    end
+
+    data = %{
+      :username => "lain",
+      :email => "lain@wired.jp",
+      :fullname => "lain iwakura",
+      :bio => "",
+      :password => "bear",
+      :confirm => "bear",
+      :reason => "I love anime"
+    }
+
+    {:ok, user} = TwitterAPI.register_user(data)
+    ObanHelpers.perform_all()
+
+    assert user.approval_pending
+
+    email = Pleroma.Emails.AdminEmail.new_unapproved_registration(admin, user)
+
+    notify_email = Pleroma.Config.get([:instance, :notify_email])
+    instance_name = Pleroma.Config.get([:instance, :name])
+
+    Swoosh.TestAssertions.assert_email_sent(
+      from: {instance_name, notify_email},
+      to: {admin.name, admin.email},
+      html_body: email.html_body
+    )
+  end
+
   test "it registers a new user and parses mentions in the bio" do
     data1 = %{
       :username => "john",