diff --git a/config/environments/production.rb b/config/environments/production.rb
index 8baa643..9028c2b 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -120,10 +120,16 @@ Rails.application.configure do
   # ActiveRecord::Middleware::DatabaseSelector::Resolver::Session
 
   # Recibir por mail notificaciones de excepciones
-  config.action_mailer.default_url_options = { host: ENV['SUTTY'] }
+  config.action_mailer.default_url_options = {
+    host: ENV.fetch('SUTTY', 'sutty.nl')
+  }
   config.action_mailer.perform_deliveries = true
   config.action_mailer.raise_delivery_errors = true
-  config.action_mailer.delivery_method = :sendmail
+  config.action_mailer.delivery_method = :smtp
+  config.action_mailer.smtp_settings = {
+    address: 'postfix',
+    domain: ENV.fetch('SUTTY', 'sutty.nl')
+  }
   config.action_mailer.default_options = { from: ENV['DEFAULT_FROM'] }
 
   config.middleware.use ExceptionNotification::Rack,