I have a server configured to accept mail for the domain of the server itself (example.org) and virtual domains (example.com). The virtual domain has several mappings of users to both local mbox accounts and remote forwarding. That works correctly.
The problems I'm having are: 1. When I send mail to non-existent users in vusers from the local machine, no bounce message is ever sent back to the user. I do see the following log entries, but is there a way to configure bounce messages sent back to the client in this case? Feb 15 12:15:09 server smtpd[90604]: 886047b20afc9b3d smtp disconnected reason=quit Feb 15 12:15:22 server smtpd[90604]: 886047b5d8ac59a6 smtp connected address=local host=server.example.org Feb 15 12:15:22 server smtpd[90604]: 886047b5d8ac59a6 smtp failed-command command="RCPT TO:<doesnotex...@example.com> " result="524 5.2.4 Mailing list expansion problem: <doesnotex...@example.com>" Feb 15 12:15:22 server smtpd[90604]: 886047b5d8ac59a6 smtp disconnected reason=disconnect 2. Even when sending from a local account to a local non-existent user such as fakeu...@server.example.org, I don't get a bounce as I'd expect. Feb 15 12:18:05 server smtpd[90604]: 886047b616b4564e smtp connected address=local host=server.example.org Feb 15 12:18:05 server smtpd[90604]: 886047b616b4564e smtp failed-command command="RCPT TO:<bobo...@server.example.org> " result="550 Invalid recipient: <bobo...@server.example.org>" Feb 15 12:18:05 lax smtpd[90604]: 886047b616b4564e smtp disconnected reason=disconnect 3. When sending mail to non-existent users from an external mail server, I get the same log message generated and a 524 error is sent back to the sender with "Mailing list expansion problem" as the message. Is there a way to generate a standard 550 Invalid recipient message, instead? Configurations are below; thank you very much in advance for assistance. # uname -a OpenBSD server 7.0 GENERIC#5 amd64 # hostname server.example.org # cat /etc/mail/vdoms example.com # cat /etc/mail/vusers b...@example.com b...@big-mail-provider.xyz j...@example.com jane # cat /etc/mail/smtpd.conf ###### smtpd.conf listen on em0 hostname server.example.org listen on lo0 table aliases db:/etc/mail/aliases.db table vusers file:/etc/mail/vusers table vdoms file:/etc/mail/vdoms # action "local" mbox alias <aliases> action "receive" mbox virtual <vusers> action "outbound" relay # match for local action "local" match from any for domain example.org action "local" match from any for domain <vdoms> action "receive" match from local for any action "outbound"
