This article was previously published under Q316328
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When you try to expand or collapse the Inbox folder of an additional mailbox that you created on a different store than your mailbox, you may receive the following error message:
The client operation failed.
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 theMicrosoft Knowledge Base:
301378 XGEN: How to Obtain the Latest Exchange 2000 Server Service Pack
The English version of this fix should have the following file attributes or later:
NOTE: Because of file dependencies, this update requires Microsoft Exchange 2000 Server Service Pack 2.
To work around this problem:
Move the user's additional mailbox to the same mailbox store (you must be an administrator to do so). However, you may not be able to use this method if users have additional mailboxes in different storage groups or stores.-or-
If the user wants to keep the mailbox on the same store:
Start Microsoft Outlook with the second user profile (for this example, User2).
Open the Inbox of the first user profile (for this example, User1).
On the View menu, click Current View, click Customize Current View, and then click Group By.
In the Expand/collapse defaults list, click All expanded.
After you use these steps, User2 can see the e-mail messages in User1's Inbox; however, folders do not collapse when User2 clicks the minus sign (-) next to them.
NOTE: The second workaround requires a client action and does not provide full Outlook functionality.
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 3.