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A user cannot access the mailbox by using a POP client or an IMAP client through Client Access Server in an Exchange 2007 environment

Symptoms
In a Microsoft Exchange Server 2007 environment, a user cannot access the mailbox by using a POP client or an IMAP client through Client Access Server (CAS) if the msExchMailboxFolderSet attribute is set to 4294967295. The logon process is unsuccessful, and you receive one of the following error messages, depending on the specific client:

ERR Logon failure: unknown user name or bad password

or
Error code: 0x800CCCDD

or
Error: 0x800CCC92
Resolution
Download and install Update Rollup 5 for Exchange 2007 Service Pack 1. For more information about Update Rollup 5 for Exchange Server 2007 Service Pack 1, see the following Exchange Help topic: For more information about how to install the latest Exchange service pack or update rollup, see the following Exchange Help topic:
More information
For more information about the msExchMailboxFolderSet attribute, visit the following Microsoft Web site: For more information, click the following article number to view the article in the Microsoft Knowledge Base:
833340 How to modify the appearance and the functionality of Outlook Web Access by using the segmentation feature in Exchange 2003
Properties

Article ID: 955619 - Last Review: 05/22/2013 06:25:00 - Revision: 2.0

Microsoft Exchange Server 2007 Service Pack 1

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