Microsoft KB Archive/912582

= You may receive an NDR when you send an e-mail message to an external X400 address through a Defense Messaging System gateway server in Exchange Server 2003 SP2 =

Article ID: 912582

Article Last Modified on 10/30/2007

-

APPLIES TO


 * Microsoft Exchange Server 2003 Service Pack 2

-





SYMPTOMS
Consider the following scenario. You are working in an organization that is running Microsoft Exchange Server 2003 Service Pack 2 (SP2). You send an e-mail message to an external X400 address. This e-mail message is routed through a Defense Messaging System (DMS) gateway server. In this scenario, you may receive a non-delivery report (NDR).

This issue occurs when the e-mail message is also routed over an X400 connector.



CAUSE
This issue occurs because an e-mail message is encapsulated two times when it is also routed over an X400 connector. When the e-mail message is encapsulated two times, the PrintableString representation of the at sign (@) may be split between two Exchange Domain Defined attribute (DDA) extension markers. When this occurs, the message transfer agent (MTA) sends an NDR.



Hotfix information
A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Prerequisites
You must install Microsoft Exchange Server 2003 Service Pack 2 (SP2) before you install the hotfix.

For more information, click the following article number to view the article in the Microsoft Knowledge Base:

836993 How to obtain the latest service packs for Exchange Server 2003

Restart requirement
You do not have to restart the computer after you apply the hotfix.

Hotfix replacement information
This hotfix does not replace any other hotfixes.

File information
The global version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
The X400 address printable character set uses T.61 extended characters. In this character set, the at sign is represented as “(a)”. If the string that represents the at sign is split between two DDA extension markers, the string is represented as one of the following strings:
 * (a;DDA:MSXCHNGE=)
 * (DDA:MSXCHNGE=a)

For more information, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

For more information, click the following article number to view the article in the Microsoft Knowledge Base:

817903 New naming schema for Exchange Server software update packages

Additional query words: Fortezza

Additional query words: XCCC

Keywords: kbhotfixserver kbqfe kbfix kbbug kbpubtypekc KB912582

-

[mailto:TECHNET@MICROSOFT.COM Send feedback to Microsoft]

© Microsoft Corporation. All rights reserved.