Since a few weeks we get incoming mails bounced, but they do get the mail delivered. This happens once in the one or two days. A restart of the domain-lookup.pl service solves it for x time.
This is what happens in the logs:
mail.info
Oct 23 16:46:18 mailer postfix/smtpd[28800]: 1D63A48C07F: client=xxx.xxx.xx[x.x.x.x]
Oct 23 16:46:18 mailer postfix/cleanup[28802]: 1D63A48C07F: message-id=7E6E2404-431F-41A3-AD0E-821C4D10F045@me.com
Oct 23 16:46:18 mailer postfix/qmgr[9665]: 1D63A48C07F: from=xxx@xxx.com, size=70051, nrcpt=1 (queue active)
Oct 23 16:46:18 mailer postfix/local[28803]: 1D63A48C07F: to=xxx@kxxx.com, relay=local, delay=0.23, delays=0.06/0/0/0.16, dsn=5.3.0, status=bounced (Command died with status 2: “/usr/bin/procmail-wrapper -o -a $DOMAIN -d $LOGNAME”)
Oct 23 16:46:18 mailer postfix/bounce[28811]: 1D63A48C07F: sender non-delivery notification: 5529348C095
Oct 23 16:46:18 mailer postfix/qmgr[9665]: 1D63A48C07F: removed
procmail.log
From xxx@xxx.xx Tue Oct 23 16:46:18 2012
Subject: Re: xxxxxx
Folder: /home/xxxx/Maildir/new/1351003578.28885_0.mailer 69052
Time:1351003578 From:am.koenraad@me.com To:xx@xxx.com User:e.verkuil Size:69103 Dest:/home/xxx/Maildir/new/1351003578.28885_0.mailer Mode:None
Undefined subroutine &main::get_user_domain called at /etc/webmin/virtual-server/lookup-domain.pl line 119.
procmail: Program failure (2) of “/etc/webmin/virtual-server/lookup-domain.pl”
PS AUX
root 8853 0.0 2.6 31596 26976 ? Ss Oct18 0:02 /usr/share/webmin/virtual-server/lookup-domain-daemon.pl
root 27115 0.0 0.0 0 0 ? Z 16:22 0:00 [lookup-domain-d]