SMTP 550 "Callout verification failed" on single address aborts rest of notifications

MrGeneration · March 29, 2023, 12:04pm

Look what I found. Seems like I was wrong, that’s your issue, isn’t it?

Zammad will stop sending a mail if error code is received

opened 01:42PM - 17 Jul 18 UTC

bug notification verified prioritised by payment mail processing

I have problems when sending notifications by email. Notifications are sent to …a lot of users, but it's possible that some of them has invalid email address. ### Infos: * Used Zammad version: 2.3.x (2.5.0 from apt-cache policy) * Installation method (source, package, ..): Package * Operating system: Debian 9 * Database + version: Postgre 9.6 * Elasticsearch version: 5.6.9 * Browser + version: any ### Expected behavior: Skip invalid email addresses and send notification to all other users. ### Actual behavior: The SMTP channel starts sending emails, but stops at the first error generated by the server. ### Steps to reproduce the behavior: Configure the SMTP server to return an error 550 on invalid email address and send a notification to that address. Yes I'm sure this is a bug and no feature request or a general question. I can see from the SMTP server that zammad stops sending messages after the first error. I can't just remove users: they are imported from Active Directory and if I disable them, they come back at next sync. This is the production.log related rows. `E, [2018-07-17T09:04:04.212121 #11048] ERROR -- : Can't use Channel::Driver::Smtp: #<Net::SMTPFatalError: 550 User not found>` `E, [2018-07-17T09:04:04.212219 #11048] ERROR -- : ["/opt/zammad/vendor/ruby-2.4.2/lib/ruby/2.4.0/net/smtp.rb:969:in check_response'", "/opt/zammad/vendor/ruby-2.4.2/lib/ruby/2.4.0/net/smtp.rb:937:in geto$` `I, [2018-07-17T09:04:04.222962 #558] INFO -- : Completed 200 OK in 100ms (Views: 0.8ms | ActiveRecord: 34.4ms)` `E, [2018-07-17T09:04:04.240879 #11048] ERROR -- : ERROR: Transaction::Notification` `E, [2018-07-17T09:04:04.240993 #11048] ERROR -- : ERROR: #<RuntimeError: Can't use Channel::Driver::Smtp: #<Net::SMTPFatalError: 550 User not found` Support Ticket #10134038