Unexpected issues occur after you run the Set-mailbox cmdlet on an Exchange Server 2007 server to convert a shared mailbox into a regular mailbox

SYMPTOMS
You have a shared mailbox on a Microsoft Exchange Server 2007 server. The corresponding Active Directory user has the userAaccountControl attribute configured. You run the Set-mailbox cmdlet to convert this shared mailbox into a regular mailbox. In this situation, the userAaccountControl attribute resets and the original value is lost. Therefore, some unexpected issues occur. 

For example, the original value for the userAaccountControl attribute is '’0x40200". After you run the Set-mailbox cmdlet on the shared mailbox, the attribute resets to "0x200". This causes remote logons to fail.  
RESOLUTION
To resolve this problem, install the following update rollup:
2279665 Description of Update Rollup 1 for Exchange Server 2007 Service Pack 3
STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
MORE INFORMATION
For more information about the Set-mailbox cmdlet, visit the following Microsoft website:For more information about how to convert a mailbox, visit the following Microsoft website:For more information about the userAccountControl attribute, visit the following Microsoft website:
Properties

Article ID: 982099 - Last Review: 09/09/2010 17:53:00 - Revision: 2.0

Microsoft Exchange Server 2007 Service Pack 3, Microsoft Exchange Server 2007 Enterprise Edition, Microsoft Exchange Server 2007 Standard Edition

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