On Fri, Jul 10, 2009 at 07:15:05AM -0400, Wietse Venema wrote: > Jakub Nadolny: > [ Charset ISO-8859-2 unsupported, converting... ] > > On Thu, Jul 09, 2009 at 05:36:58PM -0400, Wietse Venema wrote: > > > Jakub Nadolny: > > > > Jul 8 12:43:33 zonk postfix/qmgr[7095]: DF7C21811E53: > > > > from=<sender.n...@mycompany.pl>, size=4254293, nrcpt=2 (queue active) > > > > Jul 8 13:33:40 zonk postfix/qmgr[16317]: DF7C21811E53: skipped, still > > > > being delivered > > > > Jul 8 13:34:41 zonk postfix/qmgr[16317]: DF7C21811E53: skipped, still > > > > being delivered > > > > > > > > [...] messages repeated as above > > > > > > > > Jul 8 17:42:27 zonk postfix/qmgr[16317]: DF7C21811E53: skipped, still > > > > being delivered > > > > > > You have an SMTP client process that hangs. Normally, Postfix > > > will terminate it after five hours (main.cf:daemon_timeout). > > > > It looks like there should be another reason for that: > > > > # postconf |grep -i daemon_timeout > > daemon_timeout = 18000s > > > > What about active/deferred queue? Mail was deferred by remote host, but it > > stays > > in active queue and postfix is not trying to resend it any more. > > One SMTP client process was delivering message DF7C21811E53, and > that process hangs. > > THIS IS WHY YOU SEE THE 'DF7C21811E53: SKIPPED, > STILL BEING DELIVERED' MESSAGE IN THE LOGFILE. > > Normally, a watchdog timer will terminate such a process, and the > master will log a warning when that happens. The time limit is > specified with (main.cf:daemon_timeout, and is 1800s or five hours.
Thank you again. After 4.5 hour message was at last delivered. I would like to know for the future (as such cases are not so rare): 1. What can I do if again SMTP client process will hang? 2. What could be the reason for that? 3. Does it have connection with Send-Q > 80000 as displayed in netstat as I mentioned before? 4. Should I turn on debug mode in such case, or is there anything else I can do to investigate the problem? Sorry to bother you with so many questions, but I need to checkout at least if the problem is on my side or customer side. Jakub
