diff --git a/lib/pleroma/user.ex b/lib/pleroma/user.ex
index b56620c54..4329fde12 100644
--- a/lib/pleroma/user.ex
+++ b/lib/pleroma/user.ex
@@ -1598,6 +1598,22 @@ def approve(%User{} = user) do
     end
   end
 
+  def confirm(users) when is_list(users) do
+    Repo.transaction(fn ->
+      Enum.map(users, fn user ->
+        with {:ok, user} <- confirm(user), do: user
+      end)
+    end)
+  end
+
+  def confirm(%User{} = user) do
+    with chg <- confirmation_changeset(user, need_confirmation: false),
+         {:ok, user} <- update_and_set_cache(chg) do
+      post_register_action(user)
+      {:ok, user}
+    end
+  end
+
   def update_notification_settings(%User{} = user, settings) do
     user
     |> cast(%{notification_settings: settings}, [])
diff --git a/lib/pleroma/web/twitter_api/twitter_api_controller.ex b/lib/pleroma/web/twitter_api/twitter_api_controller.ex
index 6961118ca..b12606472 100644
--- a/lib/pleroma/web/twitter_api/twitter_api_controller.ex
+++ b/lib/pleroma/web/twitter_api/twitter_api_controller.ex
@@ -31,11 +31,7 @@ defmodule Pleroma.Web.TwitterAPI.Controller do
   def confirm_email(conn, %{"user_id" => uid, "token" => token}) do
     with %User{} = user <- User.get_cached_by_id(uid),
          true <- user.local and user.confirmation_pending and user.confirmation_token == token,
-         {:ok, _} <-
-           user
-           |> User.confirmation_changeset(need_confirmation: false)
-           |> User.update_and_set_cache() do
-      User.post_register_action(user)
+         {:ok, _} <- User.confirm(user) do
       redirect(conn, to: "/")
     end
   end
diff --git a/test/user_test.exs b/test/user_test.exs
index 2d3a6564b..e83275fa5 100644
--- a/test/user_test.exs
+++ b/test/user_test.exs
@@ -1352,6 +1352,78 @@ test "approves a list of users" do
         assert false == user.approval_pending
       end)
     end
+
+    test "it sends welcome email if it is set" do
+      clear_config([:welcome, :email, :enabled], true)
+      clear_config([:welcome, :email, :sender], "tester@test.me")
+
+      user = insert(:user, approval_pending: true)
+      welcome_user = insert(:user, email: "tester@test.me")
+      instance_name = Pleroma.Config.get([:instance, :name])
+
+      User.approve(user)
+
+      ObanHelpers.perform_all()
+
+      assert_email_sent(
+        from: {instance_name, welcome_user.email},
+        to: {user.name, user.email},
+        html_body: "Welcome to #{instance_name}"
+      )
+    end
+  end
+
+  describe "confirm" do
+    test "confirms a user" do
+      user = insert(:user, confirmation_pending: true)
+      assert true == user.confirmation_pending
+      {:ok, user} = User.confirm(user)
+      assert false == user.confirmation_pending
+    end
+
+    test "confirms a list of users" do
+      unconfirmed_users = [
+        insert(:user, confirmation_pending: true),
+        insert(:user, confirmation_pending: true),
+        insert(:user, confirmation_pending: true)
+      ]
+
+      {:ok, users} = User.confirm(unconfirmed_users)
+
+      assert Enum.count(users) == 3
+
+      Enum.each(users, fn user ->
+        assert false == user.confirmation_pending
+      end)
+    end
+
+    test "sends approval emails when `approval_pending: true`" do
+      admin = insert(:user, is_admin: true)
+      user = insert(:user, confirmation_pending: true, approval_pending: true)
+      User.confirm(user)
+
+      ObanHelpers.perform_all()
+
+      user_email = Pleroma.Emails.UserEmail.approval_pending_email(user)
+      admin_email = Pleroma.Emails.AdminEmail.new_unapproved_registration(admin, user)
+
+      notify_email = Pleroma.Config.get([:instance, :notify_email])
+      instance_name = Pleroma.Config.get([:instance, :name])
+
+      # User approval email
+      assert_email_sent(
+        from: {instance_name, notify_email},
+        to: {user.name, user.email},
+        html_body: user_email.html_body
+      )
+
+      # Admin email
+      assert_email_sent(
+        from: {instance_name, notify_email},
+        to: {admin.name, admin.email},
+        html_body: admin_email.html_body
+      )
+    end
   end
 
   describe "delete" do