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Article ID: 979431 - Last Review: March 4, 2010 - Revision: 1.1


Consider the following scenario:
  • You migrate a mailbox from a Microsoft Exchange Server 2003 server to a Microsoft Exchange Server 2010 server.
  • A user connects to this mailbox through the POP3 protocol.
In this scenario, the POP3 service on the Exchange 2010 Client Access server crashes. Additionally, the following error is logged in the Application log:

Log Name: Application
Source: MSExchange Common
Event ID: 4999
Task Category: General
Level: Error
Watson report about to be sent for process id: <ID>, with parameters: E12, c-RTL-AMD64, <version number>, M.Exchange.Pop3, M.E.Data.Storage, M.E.D.S.IdConverter.GetLegacyPopUid, System.ArgumentOutOfRangeException, <stamp>, <version number>.


To fix this problem, apply the following update rollup:
979611  ( ) Description of Update Rollup 2 for Exchange Server 2010: February 18, 2010


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

  • Microsoft Exchange Server 2010 Enterprise
  • Microsoft Exchange Server 2010 Standard
kbqfe kbsurveynew kbexpertiseinter kbhotfixrollup kbfix KB979431
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