diff --git a/app/controllers/admin/booths_controller.rb b/app/controllers/admin/booths_controller.rb
index 7f46c2bd..b39a2df4 100644
--- a/app/controllers/admin/booths_controller.rb
+++ b/app/controllers/admin/booths_controller.rb
@@ -70,7 +70,7 @@ module Admin
 
       if @booth.save
         if @conference.email_settings.send_on_booths_acceptance
-          Mailbot.conference_booths_acceptance_mail(@booth).deliver
+          Mailbot.conference_booths_acceptance_mail(@booth).deliver_later
         end
         redirect_to admin_conference_booths_path(conference_id: @conference.short_title),
                     notice: 'Booth successfully accepted!'
@@ -92,7 +92,7 @@ module Admin
       @booth.reject!
 
       if @booth.save
-        Mailbot.conference_booths_rejection_mail(@booth).deliver
+        Mailbot.conference_booths_rejection_mail(@booth).deliver_later
         redirect_to admin_conference_booths_path(conference_id: @conference.short_title),
                     notice: 'Booth successfully rejected.'
       else
diff --git a/app/models/user.rb b/app/models/user.rb
index 12d58c54..bc71f61f 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -287,4 +287,8 @@ class User < ApplicationRecord
       errors.add(:biography, 'is limited to 150 words.') if biography.split.length > 150
     end
   end
+
+  def send_devise_notification(notification, *args)
+    devise_mailer.send(notification, self, *args).deliver_later
+  end
 end