diff --git a/app/mailers/mailbot.rb b/app/mailers/mailbot.rb
index 9a6e3980..e0259298 100644
--- a/app/mailers/mailbot.rb
+++ b/app/mailers/mailbot.rb
@@ -1,6 +1,4 @@
 class Mailbot < ActionMailer::Base
-  default from: 'no-reply@example.com'
-
   def registration_mail(conference, user)
     mail(to: user.email,
          from: conference.contact.email,