Hi, Some time ago I configured postfix to be multi-instance and now I'm realizing some mail being generated locally by new crontab entries are bouncing because apparently the main postfix instance doesn't know where to send these emails (at least that's my guess).
Jan 27 14:21:02 xavier postfix/pickup[1247182]: B84BF4F69D: uid=1000 from=<codec> Jan 27 14:21:02 xavier postfix/cleanup[1289165]: B84BF4F69D: message-id=<[email protected]> Jan 27 14:21:02 xavier postfix/qmgr[1247183]: B84BF4F69D: from=<[email protected]>, size=1010, nrcpt=1 (queue active) Jan 27 14:21:02 xavier postfix/smtp[1289167]: B84BF4F69D: to=<[email protected]>, orig_to=<codec>, relay=none, delay=0.55, delays=0.51/0.02/0.03/0, dsn=5.4.6, status=bounced (mail for example.com loops back to myself) Jan 27 14:21:02 xavier postfix/cleanup[1289165]: C7F6165F6C: message-id=<[email protected]> Jan 27 14:21:02 xavier postfix/qmgr[1247183]: C7F6165F6C: from=<>, size=3125, nrcpt=1 (queue active) Jan 27 14:21:02 xavier postfix/bounce[1289168]: B84BF4F69D: sender non-delivery notification: C7F6165F6C Jan 27 14:21:02 xavier postfix/qmgr[1247183]: B84BF4F69D: removed Jan 27 14:21:02 xavier postfix/smtp[1289167]: C7F6165F6C: to=<[email protected]>, relay=none, delay=0, delays=0/0/0/0, dsn=5.4.6, status=bounced (mail for example.com loops back to myself) I'm not sure what information to provide to help troubleshoot this without having to send the entire config, so hopefully the info below is useful. The MX record for this domain should be using the postfix-117 instance on this host for mail destined for my example.com domain: # postmulti -l - - y /etc/postfix postfix-out mta y /etc/postfix-out postfix-117 mta y /etc/postfix-117 postfix-114 mta y /etc/postfix-114 postfix-116 mta y /etc/postfix-116 I've set up the null-client instance as per the multi-instance readme. However, mail for this example.com domain is relayed on to a remote system from a transport entry in the postfix-out instance. The other MX record for this domain is on another host. # postconf -c /etc/postfix -n|grep ^my mydestination = mydomain = example.com myhostname = xavier.example.com myorigin = $mydomain # postconf -c /etc/postfix-117 -n|grep ^my mydestination = mynetworks = 127.0.0.0/8 23.227.110.186 relay_domains in the postfix-117 instance is configured for my example.com domain. There are no transports or virtual domains or relay_domains configured in the main instance for this domain (or any domain). Thanks, Alex
