One thing to check for the MX Connect Failures is how many DNS addresses you have in your SMTP setup. If you have more than one eliminate all but the most reliable one. I have seen this solve this issue in 85% of the cases
Eric S ----- Original Message ----- From: "Imail List" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, June 27, 2003 12:18 PM Subject: RE: [IMail Forum] Forwarding getting stuck in queue > Hi All, > > We're having a similar problem, and it was also discussed yesterday in > the thread "Stuck Queue Issues". > > I'd like to know if the problem we are experiencing, and our attempted > resolution (detailed below), is similar to what is being reported on the > list...? > > For the past 2 months or so, about once a week, we experience global "MX > Connect Fail" problems. I know this is most commonly a DNS or routing > issue, but these have been checked extensively. > > All mail in the outgoing mail queue experiences "MX Connect Fail". The > queue processes 10 times (every 30 minutes) and then the mail is > returned to sender as undeliverable. > > When we experience this problem, all other services work normally (POP, > incoming SMTP, web messaging, etc.). The SMTP service shows that it is > 'running'. > > The problem is fixed by simply stopping and restarting SMTP. Unlike > yesterday's thread, clicking 'Send All' or 'Send One' does not work. > > We have checked DNS resolution, DNS connectivity, routing, Registry IP > binding, NIC drivers, backup conflicts (locking files), monitor > conflicts, etc. All without success. The only thing we have not checked > is to attempt to connect to port 25 to one of the failed mail servers, > while we are having the problem. > > The only way we even know that this problem is happening is to manually > look at the queue. We only process about 1000 pieces of outgoing mail > per day, and most of the time the queue is empty. If we are having > connect fail issues, the queue will have a bunch of messages. We stop > and restart SMTP and the queue processes and delivers immediately. > > We've been running the same box for about 12 months without issues. We > had this problem with 7.15 and also now with 8.0. > > Does this seem like a similar problem to what others are experiencing? > > Thanks, > > Daniel Armstrong > > > -----Original Message----- > > From: [EMAIL PROTECTED] [mailto:IMail_Forum- > > [EMAIL PROTECTED] On Behalf Of Jools Chesters > > Sent: Friday, June 27, 2003 6:25 AM > > To: [EMAIL PROTECTED] > > Subject: [IMail Forum] Forwarding getting stuck in queue > > > > I've got a lot of messages that are being forwarded for a couple of > > accounts that are getting stuck in the queue. > > > > The logs say MX connect fail, but if I send email to the forwarding > > account directly it goes through without a hitch. > > > > I've changed the retry period to 10 minutes and 100 tries before > > failing, I'm getting regular bounces back saying it's failed the 100 > > tries. > > > > This is a low volume version 8 server only a few thousand messages out > > each day. > > > > Is there anything else I can do as users are getting very annoyed? > > > > Jools > > > > 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/
