Hi!! no Wietse... i have studied the traffic with tcpdump and it does not seem a Postfix issue... i see lots of TCP retransmissions from postfix that do not have their correspioding ACK..
I am suspecting of a but in the Symantec appliancce used at destination... Thanks! David. -------------------------------------------- On Tue, 3/15/16, Wietse Venema <wie...@porcupine.org> wrote: Subject: Re: Mails in active queue are never tried to be sent To: "Postfix users" <postfix-users@postfix.org> Date: Tuesday, March 15, 2016, 8:48 PM Pedro David Marco: > Thanks a lot Wietse... > > here they are: Your Postfix SMTP clients are hanging (resulting in watchdog timeouts). Are you running in a VM, or some other hosting setup? Wietse > Mar 13 10:47:29 serverA postfix/qmgr[23376]: fatal: 80844160065: timeout receiving delivery status from transport: smtp > Mar 13 10:57:33 serverA postfix/qmgr[30730]: fatal: 80844160065: timeout receiving delivery status from transport: smtp > Mar 13 11:07:35 serverA postfix/qmgr[31274]: fatal: 80844160065: timeout receiving delivery status from transport: smtp > Mar 13 11:18:35 serverA postfix/qmgr[31830]: fatal: 80844160065: timeout receiving delivery status from transport: smtp > Mar 13 11:28:37 serverA postfix/qmgr[32431]: fatal: 80844160065: timeout receiving delivery status from transport: smtp > Mar 13 11:38:38 serverA postfix/qmgr[507]: fatal: 80844160065: timeout receiving delivery status from transport: smtp > Mar 13 14:27:49 serverA postfix/qmgr[6744]: fatal: 80844160065: timeout receiving delivery status from transport: smtp > Mar 13 14:37:52 serverA postfix/qmgr[10293]: fatal: 80844160065: timeout receiving delivery status from transport: smtp > Mar 13 08:07:13 serverA postfix/qmgr[19283]: warning: transport smtp failure -- see a previous warning/fatal/panic logfile record for the problem description > Mar 13 08:32:23 serverA postfix/smtp[22279]: fatal: watchdog timeout > Mar 13 08:32:24 serverA postfix/qmgr[19283]: fatal: A3FD8160067: timeout receiving delivery status from transport: smtp > Mar 13 08:42:20 serverA postfix/smtp[22278]: fatal: watchdog timeout > Mar 13 08:42:21 serverA postfix/qmgr[23376]: warning: transport smtp failure -- see a previous warning/fatal/panic logfile record for the problem description > Mar 13 09:27:24 serverA postfix/smtp[25826]: fatal: watchdog timeout > Mar 13 09:27:25 serverA postfix/qmgr[23376]: warning: transport smtp failure -- see a previous warning/fatal/panic logfile record for the problem description > Mar 13 10:02:21 serverA postfix/smtp[27627]: fatal: watchdog timeout > Mar 13 10:02:22 serverA postfix/qmgr[23376]: warning: transport smtp failure -- see a previous warning/fatal/panic logfile record for the problem description > Mar 13 10:47:28 serverA postfix/smtp[28796]: fatal: watchdog timeout > Mar 13 10:47:29 serverA postfix/qmgr[23376]: fatal: 80844160065: timeout receiving delivery status from transport: smtp > Mar 13 10:57:33 serverA postfix/qmgr[30730]: fatal: 80844160065: timeout receiving delivery status from transport: smtp > Mar 13 10:57:33 serverA postfix/smtp[29817]: fatal: watchdog timeout > Mar 13 11:07:35 serverA postfix/qmgr[31274]: fatal: 80844160065: timeout receiving delivery status from transport: smtp > Mar 13 11:07:35 serverA postfix/smtp[30750]: fatal: watchdog timeout > Mar 13 11:18:35 serverA postfix/smtp[31462]: fatal: watchdog timeout > Mar 13 11:18:35 serverA postfix/qmgr[31830]: fatal: 80844160065: timeout receiving delivery status from transport: smtp > Mar 13 11:22:32 serverA postfix/smtp[31461]: fatal: watchdog timeout > Mar 13 11:28:37 serverA postfix/smtp[31456]: fatal: watchdog timeout > Mar 13 11:28:37 serverA postfix/qmgr[32431]: fatal: 80844160065: timeout receiving delivery status from transport: smtp > Mar 13 11:32:35 serverA postfix/smtp[31458]: fatal: watchdog timeout > Mar 13 11:38:38 serverA postfix/qmgr[507]: fatal: 80844160065: timeout receiving delivery status from transport: smtp > Mar 13 11:38:38 serverA postfix/smtp[32617]: fatal: watchdog timeout > Mar 13 11:42:42 serverA postfix/smtp[32133]: fatal: watchdog timeout > Mar 13 11:49:36 serverA postfix/smtp[1061]: fatal: watchdog timeout > Mar 13 11:49:37 serverA postfix/qmgr[1051]: warning: transport smtp failure -- see a previous warning/fatal/panic logfile record for the problem description > Mar 13 11:52:44 serverA postfix/smtp[32674]: fatal: watchdog timeout > Mar 13 11:52:45 serverA postfix/qmgr[1051]: fatal: A3FD8160067: timeout receiving delivery status from transport: smtp
