SBS2003 POP3 Connector error 1056 and 1053

Hi, I use the POP3 Connector to download e-mails from ISP. No problems since
now, but, I recently noticed, some e-mails goes to Failed mail Folder. In the
Application Event Viever register error 1056 and 1053 with the error code:
-2147220979. I detected most of this mails came from a webmail that uses a
Postfix e-mail server, and RoundCube webmail agent.
All assignments in Exchange mailbox POP3 Properties for each user are right.
I already tested in other SBS2003 servers and the same error, so I think
there’s something wrong in the header.

This is the content of the .eml file located in the Failed mail Folder

Received: by [SERVER.BCN2003.SIMTEC.ES (Microsoft Connector for POP3
Mailboxes)] id <"{005C049D-D5F7-4264-9C40-BFAA8B162FB4}"@BCN2003.SIMTEC.ES>;
Mon, 5 Jul 2010 16:14:10 +0200
Received: from zeligmasimas.dnssw.net ([81.25.121.179]) by simtec.es with
MailEnable ESMTP; Mon, 5 Jul 2010 16:13:51 +0200
Received: by zeligmasimas.dnssw.net (Postfix, from userid 33)
id 166D59242A7; Mon, 5 Jul 2010 16:13:52 +0200 (CEST)
To: <>
Subject: Prueba de mail
X-PHP-Originating-Script: 0:func.inc
MIME-Version: 1.0
Date: Mon, 05 Jul 2010 16:13:51 +0200
From: <>
Message-ID: <373c5c85d253ce2e6f3a816b59d19c2c@localhost>
X-Sender:
User-Agent: RoundCube Webmail/0.3.1
Content-Type: text/plain;
charset=UTF-8
Content-Transfer-Encoding: quoted-printable
X-ME-Bayesian: 1.482913
Return-Path: <>

On Mon, 5 Jul 2010 08:45:15 -0700, Jose
<> wrote:

>Hi, I use the POP3 Connector to download e-mails from ISP. No problems since
>now, but, I recently noticed, some e-mails goes to Failed mail Folder. In the
>Application Event Viever register error 1056 and 1053 with the error code:
>-2147220979. I detected most of this mails came from a webmail that uses a
>Postfix e-mail server, and RoundCube webmail agent.
>All assignments in Exchange mailbox POP3 Properties for each user are right.
>I already tested in other SBS2003 servers and the same error, so I think
>there’s something wrong in the header.
>
>This is the content of the .eml file located in the Failed mail Folder
>
>Received: by [SERVER.BCN2003.SIMTEC.ES (Microsoft Connector for POP3
>Mailboxes)] id <"{005C049D-D5F7-4264-9C40-BFAA8B162FB4}"@BCN2003.SIMTEC.ES>;
>Mon, 5 Jul 2010 16:14:10 +0200
>Received: from zeligmasimas.dnssw.net ([81.25.121.179]) by simtec.es with
>MailEnable ESMTP; Mon, 5 Jul 2010 16:13:51 +0200
>Received: by zeligmasimas.dnssw.net (Postfix, from userid 33)
> id 166D59242A7; Mon, 5 Jul 2010 16:13:52 +0200 (CEST)
>To: <>
>Subject: Prueba de mail
>X-PHP-Originating-Script: 0:func.inc
>MIME-Version: 1.0
>Date: Mon, 05 Jul 2010 16:13:51 +0200
>From: <>
>Message-ID: <373c5c85d253ce2e6f3a816b59d19c2c@localhost>
>X-Sender:
>User-Agent: RoundCube Webmail/0.3.1
>Content-Type: text/plain;
> charset=UTF-8
>Content-Transfer-Encoding: quoted-printable
>X-ME-Bayesian: 1.482913
>Return-Path: <>


After trying to look this up at eventid.net and other places, many of
the links indicate this can be caused by the incorrect POP3 Connector
info for the user account. However, since you've mentioned that the
"[...] POP3 Properties for each user are right, [...]," I assumed
you've removed and recreated them, and all was done in the SBS wizard.

I've also seen issues regarding communications between PostFix servers
and Exchange.

It could also be a POP3 scheduling issue. What is the schedule set to?
If too short, I've seen bandwidth throttling cause it because the
scheudled time between checking for new messages may overlap if too
short (such as below 5 minutes), and if there's an attachment, it may
fail.


Ace

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Ace Fekay, MVP, MCT, MCITP EA, MCTS Windows 2008 & Exchange 2007, MCSE & MCSA 2003/2000, MCSA Messaging 2003
Microsoft Certified Trainer
Microsoft MVP - Directory Services

If you feel this is an urgent issue and require immediate assistance, please contact Microsoft PSS directly. Please check http://support.microsoft.com for regional support phone numbers.