diff --git a/app/models/user.rb b/app/models/user.rb
index 2b0bee2099f2f5110bb1b08be29fca08e298e4da..531dc9a5aed17890133b3ff71a19c176c1c0a698 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -845,11 +845,6 @@ class User < ActiveRecord::Base
                             other.select(:id)])
   end
 
-  # Added according to https://github.com/plataformatec/devise/blob/7df57d5081f9884849ca15e4fde179ef164a575f/README.md#activejob-integration
-  def send_devise_notification(notification, *args)
-    devise_mailer.send(notification, self, *args).deliver_later
-  end
-
   def ensure_external_user_rights
     return unless self.external?
 
diff --git a/config/initializers/devise_async.rb b/config/initializers/devise_async.rb
index 05a1852cdbd9d141a757755983adc59ad467f3ca..fa602cbe5543dbcce328cd3b5ad663992fe55678 100644
--- a/config/initializers/devise_async.rb
+++ b/config/initializers/devise_async.rb
@@ -1 +1,2 @@
 Devise::Async.backend = :sidekiq
+Devise::Async.queue = :mailers