CiviCRM Community Forums (archive)

 

when I submit a mailing to a group of recipients, and send test message, I get following error:

“Failed to add recipient: xx.yy @ abc.xyz [SMTP: Invalid response code received from SMTP server while sending email. This is often caused by a misconfiguration in Outbound Email settings. Please verify the settings at Administer CiviCRM >> Global Settings >> Outbound Email (SMTP). (code: 550, response: Verification failed for Unrouteable address Sender verify failed)]”

And when I don’t bother sending a test message and schedule the mail anyway, it gets stuck as “running” in terms of status.

If I then go into system settings and execute the scheduled mailing job, it returns “DB Error: unknown error.”

I know there are other related threads but as a noob they do not help much, so I would appreciate some advice!
thanks