Article ID: 166536 - Last Review: October 28, 2006 - Revision: 4.1

XCON: MTA Generates Event ID 2187 on Deferred Delivery Message

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SYMPTOMS

When you send a message designated for deferred delivery, the message transfer agent (MTA) may generate an error message resembling the following: 
   MSExchangeMTA
   Event ID: 2187
   MSExchangeMTA event ID: 2187
   An MTA database server error was encountered while attempting to unlock
   an object which is not locked. Called from MTA. Procedure XX. Object at
   fault: XXXXXXXX.
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CAUSE

The source object for a deferred delivery message is locked twice and then unlocked once. The first unlock leaves the object in an unlocked state. When a second unlock attempt is made, the error message appears.
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STATUS

Microsoft has confirmed this to be a problem in Microsoft Exchange Server version 5.0. This problem was corrected in the latest Microsoft Exchange Server 5.0 U.S. Service Pack. For information on obtaining the service pack, query on the following word in the Microsoft Knowledge Base (without the spaces):
S E R V P A C K
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APPLIES TO
  • Microsoft Exchange Server 5.0 Standard Edition
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Keywords: 
kbqfe kbhotfixserver kbbug kbfix kbusage KB166536
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Retired KB ArticleRetired KB Content Disclaimer
This article was written about products for which Microsoft no longer offers support. Therefore, this article is offered "as is" and will no longer be updated.
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