Specific E-mail hanging POP3 mail clients

[John Rudd]

On May 14, 2004, at 2:37 PM, ISP List wrote:

>> 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).
>
>

Just out of curiosity, what MTA is running on your MailScanner boxes?
Sendmail, CGP, postfix, ?

(ie. are you using mailscanner via my cgp2ms and ms2cgp scripts, or is
this issue unrelated?)


John

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