Jan Eden via Postfix-users: > Hi, > > I configured two hosts to forward messages for local accounts to a relay > host like this: > > myhostname = social.eden.one > myorigin = /etc/mailname > alias_maps = hash:/etc/aliases > sender_canonical_maps = hash:/etc/postfix/sender_canonical > mydestination = $myhostname, localhost.localdomain, localhost > relayhost = [mail.eden.one]:587 > mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 > inet_interfaces = loopback-only > inet_protocols = all > smtp_sasl_auth_enable = yes > smtp_sasl_password_maps = hash:/etc/postfix/relay_passwd > smtp_sasl_security_options = noanonymous > > The only difference is $myhostname (social and socialnew, respectively). > > /etc/aliases contains "root: [email protected]" on both hosts. Strangely > enough, the hosts handle messages to the local root account differently. > When sending a message with > > echo "Test" | mail -s "Test" root > > this is what happens: > > # social > > 2026-01-16T09:01:45.304481+01:00 social postfix/pickup[1033769]: 4A28540108: > uid=0 from=<[email protected]> > 2026-01-16T09:01:45.314262+01:00 social postfix/cleanup[1033779]: 4A28540108: > message-id=<[email protected]> > 2026-01-16T09:01:45.316038+01:00 social postfix/qmgr[1033771]: 4A28540108: > from=<[email protected]>, size=325, nrcpt=1 (queue active) > 2026-01-16T09:01:45.325662+01:00 social postfix/cleanup[1033779]: 4F45940059: > message-id=<[email protected]> > 2026-01-16T09:01:45.329087+01:00 social postfix/local[1033781]: 4A28540108: > to=<[email protected]>, orig_to=<root>, relay=local, delay=0.04, > delays=0.02/0.01/0/0, dsn=2.0.0, status=sent (forwarded as 4F45940059) > 2026-01-16T09:01:45.329315+01:00 social postfix/qmgr[1033771]: 4F45940059: > from=<[email protected]>, size=456, nrcpt=1 (queue active) > 2026-01-16T09:01:45.329400+01:00 social postfix/qmgr[1033771]: 4A28540108: > removed
Above, the destination 'root' becomes 'root@something', that 'something' MATCHES MYDESTINATION, the scheduler talks to a Postfix local delivery agent, and the local delivery agent forwards the message elsewhere. > # socialnew > > 2026-01-16T09:50:48.132515+01:00 socialnew postfix/pickup[1902]: 204178035A: > uid=0 from=<[email protected]> > 2026-01-16T09:50:48.137059+01:00 socialnew postfix/cleanup[1912]: 204178035A: > message-id=<[email protected]> > 2026-01-16T09:50:48.137838+01:00 socialnew postfix/qmgr[1903]: 204178035A: > from=<[email protected]>, size=335, nrcpt=1 (queue active) > 2026-01-16T09:50:48.801409+01:00 socialnew postfix/smtp[1914]: 204178035A: > to=<[email protected]>, relay=mail.eden.one[2a01:4f8:1c1f:876d:8000::10]:587, > delay=0.67, delays=0.01/0.02/0.28/0.37, dsn=2.0.0, status=sent (250 2.0.0 > 3b1bfbad Message accepted for delivery) > 2026-01-16T09:50:48.801507+01:00 socialnew postfix/qmgr[1903]: 204178035A: > removed Above, the destination 'root' becomes 'root@something, that 'something' DOES NOT MATCH MYDESTINATION, the scheduler talks to a Postfix client, and that SMTP client delivers the message elsewhere. You need to compare outputs from: postcnf myorigin postconf mydestination from both systems. Wietse _______________________________________________ Postfix-users mailing list -- [email protected] To unsubscribe send an email to [email protected]
