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 Description: 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.