Dear All, I'm trying to configure postfix as a smarthost. It rewrites the sender address with sender_canonical_maps.
<ch...@example.com>: host smtp.example2.com[1.2.3.4] said: 553 5.7.1 <strohh...@example2.com>: Sender address rejected: not owned by user strohh...@example2.com (in reply to RCPT TO command) I'm surprised that both addresses are the same. The Postfix documentation says envelope and header are rewritten by default by sender_canonical_maps. The From-Header is rewritten correctly in the mail attached to the delivery failed message. When I use another mail client I can send from strohh...@example2.com without any issues! Does someone happen to know, what the issue is? Is it possible to make the smarthost more verbose? Thank you in advance! - Chris
