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Email error "System Administrator Underivable"

Posted on 2008-06-10
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Medium Priority
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Last Modified: 2008-09-17
First: sorry for my english :)
In the last  days we are receiving a lot of "System Administrator Underivable" messages and
we suppose "someone" use ours e-mail addresses for spamming;
The question is : exist a procedure for filtering these messages using exchange 2003 server ?

We attach a message header sample where (my.mail.server.com is the short of our domain name and xxxyyyxxx.org is the generic remote SMTP server):


 
Microsoft Mail Internet Headers Version 2.0
Received: from exchange.xxxyyyxxx.org ([xx.yyy.www.jjj]) by my.mail.server.com with Microsoft SMTPSVC;
       Fri, 11 Apr 2008 14:19:50 +0200
From: postmaster@xxxyyyxxx.org
To: me@my.mail.server.com
Date: Fri, 11 Apr 2008 08:23:45 -0400
MIME-Version: 1.0
Content-Type: multipart/report; report-type=delivery-status;
      boundary="9B095B5ADSN=_01C89A13F27B49620002398Dexchange.xxxyyyxxx"
X-DSNContext: 335a7efd - 4523 - 00000001 - 80040546
Message-ID: <IYINaQSzP000139e1@exchange.xxxyyyxxx.org>
Subject: Delivery Status Notification (Failure)
Return-Path: <>
X-OriginalArrivalTime: 11 Apr 2008 12:19:50.0645 (UTC) FILETIME=[57126250:01C89BCE]
X-TM-AS-Product-Ver: SMEX-7.5.0.1243-5.0.1023-15842.003
X-TM-AS-Result: No--14.878000-4.000000-31
X-TM-AS-User-Approved-Sender: No
X-TM-AS-User-Blocked-Sender: No

--9B095B5ADSN=_01C89A13F27B49620002398Dexchange.xxxyyyxxx
Content-Type: text/plain; charset=unicode-1-1-utf-7

--9B095B5ADSN=_01C89A13F27B49620002398Dexchange.xxxyyyxxx
Content-Type: message/delivery-status

--9B095B5ADSN=_01C89A13F27B49620002398Dexchange.xxxyyyxxx
Content-Type: message/rfc822

Received: from psmtp.com ([xx.xxx.x.xxx]) by exchange.xxxyyyxxx.org with Microsoft SMTPSVC;
       Fri, 11 Apr 2008 08:23:45 -0400
Received: from source ([yy.yyy.y.yyy]) by mail.remote.com ([yy.yyy.y.yyy]) with SMTP;
      Fri, 11 Apr 2008 05:20:05 PDT
Message-ID: <000801c89bce$041ede0d$11e502ab@ootnw>
From: "dougie bart" <me@my.mail.server.com>
To: <yoy@hhh.com>
Subject: Breitling
Date: Fri, 11 Apr 2008 10:32:42 +0000
MIME-Version: 1.0
Content-Type: multipart/alternative;
      boundary="----=_NextPart_000_0005_01C89BCE.041AC2EB"
X-Priority: 3
X-MSMail-Priority: Normal
X-Mailer: Microsoft Outlook Express 6.00.2900.3138
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198
X-pstn-levels:     (S: 0.00000/89.19188 CV:99.9000 R:95.9108 P:95.9108 M:95.5423 C:98.6951 )
Return-Path: <>
X-OriginalArrivalTime: 11 Apr 2008 12:23:45.0484 (UTC) FILETIME=[E30BF8C0:01C89BCE]

------=_NextPart_000_0005_01C89BCE.041AC2EB
Content-Type: text/plain;
      charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

------=_NextPart_000_0005_01C89BCE.041AC2EB
Content-Type: text/html;
      charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable


------=_NextPart_000_0005_01C89BCE.041AC2EB--

--9B095B5ADSN=_01C89A13F27B49620002398Dexchange.xxxyyyxxx--



Thank you very much in advance
0
Comment
Question by:ifmtech2007
3 Comments
 
LVL 3

Accepted Solution

by:
Karl12347 earned 500 total points
ID: 21749510
If you use any email filtering software, you need to block external internet email from your domain and then add your internal email servers to the accepted email servers list.

This will stop all spoofed mails from the internet using your domain name but will not cause any problems sending external emails from internal.

Hope this helps.
Karl
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