Microsoft KB Archive/226350

= XCLN: Opening Additional Mailboxes When Starting Outlook Does Not Work When DPA is Used as Authentication Method =

Article ID: 226350

Article Last Modified on 10/26/2006

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APPLIES TO


 * Microsoft Exchange Server 5.5 Standard Edition

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This article was previously published under Q226350





SYMPTOMS
When Outlook is configured to open additional mailboxes on startup, it does not work if Distributed Password Authentication (DPA) is used as authentication method, and you get the following error message:

Unable to expand the folder. The set of folders could not be opened. The information store could not be opened.

The above problem does not occur when Windows NT LAN Manager (NTLM) is used as authentication method.



CAUSE
This behavior is caused by a logic error in the code. The main difference between Windows NT and Membership security is that with Membership, one Windows NT account, the "broker," is mapped to all the Exchange Server mailboxes.



RESOLUTION
To resolve this problem, obtain the latest service pack for Exchange Server version 5.5. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

191014 XGEN: How to Obtain the Latest Exchange Server 5.5 Service Pack

The English version of this fix should have the following file attributes or later:

Component: MDB



STATUS
Microsoft has confirmed that this is a problem in Microsoft Exchange Server version 5.5. This problem was first corrected in Exchange Server 5.5 Service Pack 3.

Keywords: kbhotfixserver kbqfe kbbug kbfix kbqfe KB226350

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