XCON: Message Transfer Agent Builds a New X.400 DDA-Encapsulated Address for Contacts

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Article ID: 311509 - View products that this article applies to.
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You may receive non-delivery-reports (NDRs) from a foreign X.400 system when you are sending messages to Contacts in the Global Address List.


Exchange 2000 sends an X.400 domain-defined attribute (DDA) encapsulated address instead of using the X.400 proxy address of the contact in some specific scenarios.


To resolve this problem, obtain the latest service pack for Microsoft Exchange 2000 Server. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
301378 XGEN: How to Obtain the Latest Exchange 2000 Server Service Pack
The English version of the hotfix should have the following file attributes or later:

Component: MTA

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File nameVersion

NOTE: Because of file dependencies, this update requires Microsoft Exchange 2000 Server Service Pack 1.


Microsoft has confirmed that this is a problem in Microsoft Exchange 2000 Server. This problem was first corrected in Microsoft Exchange 2000 Server Service Pack 2.


Article ID: 311509 - Last Review: October 24, 2013 - Revision: 1.3
  • Microsoft Exchange 2000 Server Standard Edition
kbnosurvey kbarchive kbbug kbexchange2000presp2fix kbexchange2000sp2fix kbfix KB311509

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