Specific E-mail hanging POP3 mail clients

[ISP List]

>What does the pop server log say?

12:04:40.58 2 POP-03264 'my at user.com' connected from [x.x.x.x:1087]
12:04:40.58 5 POP-03264 out: +OK 2 messages (2046 bytes)\r\n
12:04:40.60 5 POP-03264 inp: STAT
12:04:40.60 5 POP-03264 out: +OK 2 2046\r\n
12:04:40.61 5 POP-03264 inp: LIST
12:04:40.61 5 POP-03264 out: +OK 2 messages\r\n1 502\r\n2 1544\r\n.\r\n
12:04:40.80 5 POP-03264 inp: RETR 1
12:04:40.80 5 POP-03264 out: +OK 502 bytes will follow\r\n
12:04:40.80 5 POP-03264 out: Return-Path: <my at user.com>\r\nReceived: from
[x.x.x.x] (account my at user.com)\r\n  by cgp1.tulsaconnect.com (CommuniGate
Pro W
12:04:40.80 2 POP-03264 0 {3513} retrieved, 505 bytes
12:04:41.02 3 POP-03264 read failed. Error Code=connection closed by peer
12:04:41.02 2 POP-03264 'my at user.com' disconnected ([x.x.x.x:1087])
12:04:41.02 4 POP-03264 closing connection
12:04:41.02 4 POP-03264 releasing stream

>Are you sure it's not just a connectivity, pop timeout issue?

Yes.  We're seeing the issue across two completely different mail servers
that are being front-ended by our MailScanner boxes.  Both POP servers run
CommuniGate Pro 4.1.8.  The problem only surfaced in the last few weeks,
which is about the same time I upgraded MailScanner, so I was going to see
if anyone had seen this issue also.  Thus far, I haven't had a chance to
try and reproduce it myself.  I was suspicious of the Content-Type of
"multipart/related" in the original message (which isn't something I see
often).


-----------------------------------------
Mike Bacher / isp-list at tulsaconnect.com
TCIS - TulsaConnect Internet Services
Phone: 918-584-1100x110 Fax: 918-582-5776
-----------------------------------------

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