Microsoft KB Archive/274200

= XADM: Duplicated Message Received with Information Store Post-Service Pack 3 Hotfix =

Article ID: 274200

Article Last Modified on 10/26/2006

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APPLIES TO


 * Microsoft Exchange Server 5.5 Service Pack 3

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This article was previously published under Q274200





SYMPTOMS
After you install any post-Exchange Server 5.5 Service Pack 3 (SP3) information store hotfix (between build 5.5.2652.68 and 5.5.2653.16), you may receive duplicate messages when the message was originally sent to you or to a distribution list that includes your mailbox.



CAUSE
Any information store fix after build 5.5.2652.68 has been changed to use the Internet ID globally unique identifier (GUID) instead of the Instance ID to track message duplication. The local delivery pointer is not initialized correctly after the modification.



RESOLUTION
To resolve this problem, obtain the latest service pack for Exchange Server 5.5. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

191014 XGEN: How to Obtain the Latest Exchange Server 5.5 Service Pack



STATUS
Microsoft has confirmed that this is a problem in Microsoft Exchange Server version 5.5 SP3. This problem was first corrected in Exchange Server 5.5 Service Pack 4.

Additional query words: IS

Keywords: kbhotfixserver kbqfe kbbug kbexchange550presp4fix kbexchange550sp4fix kbfix kbqfe KB274200

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