In the document "Postfix SMTP relay and access control". "Postfix forwards mail only from clients in trusted networks, or to domains that are configured as authorized relay destinations."
http://www.postfix.org/SMTPD_ACCESS_README.html In this case Postfix is forwarding mail from an untrusted client to an authorized relay destination. It's easy to play semantic games with the wording though. So forward upstream and suggest a reject_sender_relay_transport_mismatch restriction for smtpd_sender_restrictions in the same vein as reject_sender_login_mismatch but for relays. -- postfix allows unauthorised relay_domain spamming https://bugs.launchpad.net/bugs/160945 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
