Add SMTP reply_to option (#11718)

* Add SMTP_REPLY_TO in .env.production.sample

* Set reply_to in SMTP options

.env.production.sample

@@ -69,6 +69,7 @@ SMTP_PORT=587
 SMTP_LOGIN=
 SMTP_PASSWORD=
 SMTP_FROM_ADDRESS=notifications@example.com
+#SMTP_REPLY_TO=
 #SMTP_DOMAIN= # defaults to LOCAL_DOMAIN
 #SMTP_DELIVERY_METHOD=smtp # delivery method can also be sendmail
 #SMTP_AUTH_METHOD=plain

config/environments/production.rb

@@ -83,7 +83,10 @@ Rails.application.configure do
   config.action_mailer.perform_caching = false
 
   # E-mails
-  config.action_mailer.default_options = { from: ENV.fetch('SMTP_FROM_ADDRESS', 'notifications@localhost') }
+  config.action_mailer.default_options = {
+    from: ENV.fetch('SMTP_FROM_ADDRESS', 'notifications@localhost'),
+    reply_to: ENV['SMTP_REPLY_TO']
+  }
 
   config.action_mailer.smtp_settings = {
     :port                 => ENV['SMTP_PORT'],