Article ID: 283832 - View products that this article applies to.
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Users may not be able to gain access to some mailboxes immediately after a move. This problem occurs in the following circumstances:
This problem occurs because the original Messaging Database (MDB) name is saved by the information store in a cache that is called the MBI cache. This cache expires in two hours by default (you can adjust this cache expiration time in the registry). If the directory service takes a long time to replicate a user's new server name (the home MDB attribute), the user might receive incorrect server data when the user tries to log on to the new information store. After this failure, the cache has the incorrect MDB name, and continues to use the incorrect MDB name until the MDB name expires two hours later.
To resolve this problem, obtain the latest service pack for Microsoft Exchange 2000 Server. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
301378The English version of this fix should have the following file attributes or later:
(https://support.microsoft.com/kb/301378/EN-US/ )XGEN: How to Obtain the Latest Exchange 2000 Server Service Pack
Component: Information Store
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To work around this problem, only perform moves during the night or on weekends, when it does not create a problem if a user cannot gain access to a mailbox for several hours.
Microsoft has confirmed that this is a problem in Microsoft Exchange 2000 Server. This problem was first corrected in Microsoft Exchange 2000 Server Service Pack 1.