Add sendmail to production.rb

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

config/environments/production.rb

@@ -48,8 +48,14 @@ GitlabCi::Application.configure do
   # Precompile additional assets (application.js, application.css, and all non-JS/CSS are already added)
   # config.assets.precompile += %w( search.js )
-  # Disable delivery errors, bad email addresses will be ignored
-  # config.action_mailer.raise_delivery_errors = false
+  config.action_mailer.delivery_method = :sendmail
+  # Defaults to:
+  # # config.action_mailer.sendmail_settings = {
+  # #   location: '/usr/sbin/sendmail',
+  # #   arguments: '-i -t'
+  # # }
+  config.action_mailer.perform_deliveries = true
+  config.action_mailer.raise_delivery_errors = true
   # Enable threaded mode
   # config.threadsafe!