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.
That's just one reason. Could be a timeout because the host is just too
busy to complete the connection (are you running a mail server on a 486? :)
).
This looks like more of a networking issue than a mail issue to me.
Especially if some people can connect fine and others consistently can't.
You can start with a packet-level capture on both mail.dahlelectic.com and a
problematic-sending machine as a start. But without access to some more
diagnostics, it's tough to say what the problem really is.
Best luck - I hope that helps you start troubleshooting.
--
Ed Marczak
[EMAIL PROTECTED]
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