Also, during failure, can the server resolve the names of remote mail servers? Is DNS functional? For that matter, can the server initiate any sort of outgoing connections while in its failure mode?
What errors do you see in Imail's log? These used to be called 'stack connect' failures when Imail remote delivery failed at the network level. One more thing- you mention a reboot fixes the issue. This may sound far fetched but I have seen an IP address conflict cause this exact behavior. If all else fails, 'Etherpeek' it to see what's really up. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Heimir Eidskrem Sent: Monday, December 04, 2006 4:30 PM To: [email protected] Subject: Re: [IMail Forum] Odd outgoing smtp problem Never tried to telnet to the local ip but will try that next time. Every thing else works fine on the machine. Thanks, Dave Marchette wrote: > A rogue application may be periodically fighting Imail for the outgoing > smtp port, or you may have a shady NIC. During this period of outage, > are you able to telnet your local IP and if so, what answers? > > > > > > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Heimir > Eidskrem > Sent: Monday, December 04, 2006 4:10 PM > To: [email protected] > Subject: [IMail Forum] Odd outgoing smtp problem > > > Several times now we have experienced a strange problem we cant track > down. > Our mail server (8.22) will not send emails. It will receive the emails > > (we use Declude) scan it then put it in the spool folder. > When you look in the log files you see entries where it could not > connect to other mail servers and if you try to telnet to other mail > servers its not working. > No reports of any problems when we check the event viewer. > > We put a rule for all outgoing traffic in the firewall but could not see > > any entries at all, neither good or bad. > > Doing a netstat we see tons of TIME_WAIT when its not working. > > Rebooting the firewall did not fix it but rebooting the server did. > Stopping and starting either Quemanager or SMTP did not fix it either. > > It appears like SMTP is being blocked by the server itself (no security > software active or installed), either by a large amount of connection in > > TIME_WAIT or something else. > > > Not sure where to look next so all suggestions will help. > > > > To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html > List Archive: > http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ > To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html > List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ > > > To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
