Article ID: 941146 - Last Review: December 9, 2011 - Revision: 6.0 Error message when an Exchange Server 2007 user or an Exchange Server 2010 user tries to log on to OWA
SYMPTOMS
CAUSEThis problem can occur when the msExchVersion attribute is configured incorrectly for the user object in Active Directory Domain Services (AD DS). Note The msExchVersion attribute may not be configured correctly if you create the user's mailbox by using Active Directory Users and Computers Microsoft Management Console (MMC) snap-in instead of using the Exchange Management Console. RESOLUTIONIf you are not familiar with Microsoft Exchange management, please contact your local systems administrator to help fix the problem. To verify this problem, you can check the msExchVersion attribute by using the Exchange Management Shell. To do this, run the following command in the Exchange Management Shell prompt: Get-Mailbox <User_Name>| format-list ExchangeVersion Note Exchange Server 2007 and Exchange Server 2010 both use the msExchVersion attribute to determine the version of Exchange Server with which user objects are associated. If the version value is less than 0.1, Exchange Server 2007 or Exchange Server 2010 considers the user object as Read-only. To resolve this problem, an Exchange administrator must run the following command in the Exchange Management Shell prompt: Set-Mailbox <User_Name> -ApplyMandatoryProperties Notes
MORE INFORMATIONFor information about an error that can occur after you create or migrate mailboxes on a server that is running Exchange Server 2007, see the following article in the Microsoft Knowledge Base: 949527
(http://support.microsoft.com/kb/949527/en-us/
)
Some users cannot access Exchange Server 2007 Outlook Web Access after you create new mailboxes or migrate existing mailboxes For more information about the Set-Mailbox command in Exchange Server 2007, visit the following Microsoft website:General information about the Set-Mailbox command in Exchange Server 2007
(http://technet.microsoft.com/en-us/library/bb123981(EXCHG.80).aspx)
For more information about the Set-Mailbox command in Exchange Server 2010, visit the following Microsoft website:General information about the Set-Mailbox command in Exchange Server 2010
(http://technet.microsoft.com/en-us/library/bb123981.aspx)
For more information about the Exchange Management Shell, visit the following Microsoft website:General information about the Exchange Management Shell
(http://technet.microsoft.com/en-us/library/bb123778(EXCHG.80).aspx)
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