Ed Marczak responded to this earlier, but everyone (of course) is invited to help...
At 11:11 AM 7/8/02 -0400, you wrote: >On 7/7/02 1:10 PM, "Ben Ocean" [EMAIL PROTECTED] pressed the keys forming >the message: > > > At 10:05 AM 7/7/02 -0400, you wrote: > >> On 7/6/02 12:42 PM, "Ben Ocean" <[EMAIL PROTECTED]> wrote: > >> > >>> Hi; > >>> Mail messages apparently are being timed out on some messages being > >>> delivered to my server. Here's a transcript: > >>> > >>>> Thu 2002-07-04 14:09:56: [-1:15] > Parsing Message > >>>> <C:\MDAEMON\REMOTEQ\RETRY\pd90000000001.msg> > >>>> Thu 2002-07-04 14:09:56: [-1:15] > From: [EMAIL PROTECTED] > >>>> Thu 2002-07-04 14:09:56: [-1:15] > To: [EMAIL PROTECTED] > >>>> Thu 2002-07-04 14:09:56: [-1:15] > Subject: tgiw > >>>> Thu 2002-07-04 14:09:56: [-1:15] > Message-ID: > >>>> <000701c222ce$5546b5e0$[EMAIL PROTECTED]> > >>>> Thu 2002-07-04 14:09:56: [-1:15] MX-record resolution of > >>>> [dahlelectric.com] in > >>>> progress (DNS Server: 206.40.133.20)... > >>>> Thu 2002-07-04 14:09:56: [-1:15] P=010 D=dahlelectric.com TTL=(1147) > >>>> MX=[mail.dahlelectric.com] {216.57.201.7} > >>>> Thu 2002-07-04 14:09:56: [-1:15] Attempting MX: P=010 D=dahlelectric.com > >>>> TTL=(1147) MX=[mail.dahlelectric.com] {216.57.201.7} > >>>> Thu 2002-07-04 14:09:56: [-1:15] Attempting SMTP connection to > >>>> [216.57.201.7 : > >>>> 25] > >>>> Thu 2002-07-04 14:09:56: [25:15] Waiting for socket connection... > >>>> Thu 2002-07-04 14:09:57: [25:15] Socket connection established > >>>> Thu 2002-07-04 14:09:57: [25:15] Waiting for protocol initiation... > >>>> Thu 2002-07-04 14:10:28: [25:15] 30 second wait for protocol timeout > >>>> exceeded. > >>>> Thu 2002-07-04 14:10:28: [25:15] This message is 1 days old; it has > 4 days > >>>> left to > >>>> get delivered > >>>> Thu 2002-07-04 14:10:28: [25:15] SMTP session abnormally terminated, 0 > >> bytes > >>>> transferred. > >>> > >>> How do I begin trouble-shooting this one? The MTA is qmail. > >> > >> Not that I know anything about qmail....but is this incoming or outgoing? > >> Are you quantumci.com or dahlelectric.com? > > > > Oops. I'm dahlelectric.com > >The log you present above does not appear to be from dahlelectric.com. At >least not from the mail server. That would be a good place to start. What >this log shows me is this: > >- Mail is being sent from point A to dahlelectric.com > >- qmail goes through MX resolution to determine where to send mail for >dahlelectric.com. Turns out to be mail.dahlelectric.com @ 216.57.201.7 >(which is actually www.performancemarketers.com, also running qmail) > >- It makes an initial connection, but then times out. > >- With delivery being unsuccessful, the message is queued for re-delivery >later. > >Now, that timeout. There are many reasons for that. I just helped a client >with a similar problem. Some remote users could check IMAP mail, some >couldn't. Like you, they made an initial connection and then....nothing. > >Turned out that the problem sites were using older hardware (xDSL routers) >that weren't properly dealing with PMTUD. Some sites were able to upgrade >their firmware, solving their problems. I wound up lowering the MTU at the >host site slightly for people who couldn't upgrade. Okay, let's assume that's what's going on (since I set my qmail for very verbose error-checking and couldn't even discover that the sender in question was even hitting my server). How do I *lower the MTU*? TIA, BenO _______________________________________________ Redhat-list mailing list [EMAIL PROTECTED] https://listman.redhat.com/mailman/listinfo/redhat-list