I have a fairly annoying problem.
Exchange 2003 server - Country A
Domain 1 - example.net
Domain 2 - example.net.au
Domain 3 - different.com
Users - Country A - Domain 1,2 - No problems
Users - Country B - Domain 3 - Problems
The problem is as follow:
2 of 3 users in Country B, using RPC/HTTP Outlook Anywhere are receiving bounced email from clients / external people. They are sending out as firstname.lastname@example.org but when an external person is sending to them they are getting bounceback email from email@example.com.
Users in Country B are have multiple SMTP address on their AD account, with different.com as the primary. 'Update based on recipient policies' is unticked.
If you need any further information, or this is written so terribly that you can't understand it, please let me know.
I have access to the Exchange server, DNS domain setup etc.
Sample of an error:
From: Mail Delivery System
Sent: 15 February 2011 17:27
To: External User
Subject: Mail delivery failed: returning message to sender
This message was created automatically by mail delivery software.
A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed:
(generated from firstname.lastname@example.org
SMTP error from remote mail server after RCPT
host mx1.xxx.com.au [xxx.xxx.xxx.xx]: 550 #5.1.0 Address rejected.
------ This is a copy of the message, including all the headers. ------
Received: from [188.8.131.52] (helo=mail.spacesolutions.
with esmtp (Exim 4.69)
id 1PpOgN-00072o-cc; Tue, 15 Feb 2011 17:27:24 +0000
Received: from spacesolutions.info [10.10.10.235] by mail.spacesolutions.info - Websense Email Security (7.2.0); Tue, 15 Feb
2011 17:13:01 +0000
Received: from 10.10.10.235 ([10.10.10.235]) by chessabz02.chess.group
([10.10.10.235]) with Microsoft Exchange Server HTTP-DAV ; Tue, 15 Feb 2011 17:23:28 +0000
From: "External User" <external.user@spacesoluti
Date: Tue, 15 Feb 2011 17:26:09 +0000
MIME-Version: 1.0 (iPhone Mail 8A293)