Microsoft KB Archive/273732

= XADM: Mail-Enabled Alternate Recipient Prevents You from Logging On to the Mailbox =

Article ID: 273732

Article Last Modified on 2/26/2007

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APPLIES TO


 * Microsoft Exchange 2000 Server Standard Edition

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This article was previously published under Q273732





SYMPTOMS
If you have an alternate recipient set to a mail-enabled user, you may receive the following error message when you attempt to log on to the Exchange 2000 Server mailbox:

Unable to open your default e-mail folders. The attempt to log on to the Microsoft Exchange Server computer has failed.



CAUSE
This problem can occur because the object class of a mail-enabled user is &quot;user.&quot; When you log on, if the object class of an alternate recipient is &quot;user,&quot; the information store attempts to retrieve the mailboxguid attribute. Because the alternate recipient object is not mailbox enabled, the alternate recipient object does not have a mailboxguid attribute, and the information store generates the error message in the &quot;Symptoms&quot; section of this article.



WORKAROUND
To work around this problem, set the alternate recipient to be a contact or a mailbox-enabled user.



STATUS
Microsoft has confirmed that this is a problem in Microsoft Exchange 2000 Server.



MORE INFORMATION
To determine a user's alternate recipient:
 * 1) Start the Active Directory Users and Computers Microsoft Management Console (MMC) snap-in; click Start, point to Programs, point to Administrative Tools, and then click Active Directory Users and Computers.
 * 2) Locate the user account, and then double-click the object to open the object properties.
 * 3) Click the Exchange General tab, and then click Delivery Options.
 * 4) The alternate recipient is displayed under Forwarding address.

For additional information about contacts, mail-enabled users, and mailbox-enabled users, click the article numbers below to view the articles in the Microsoft Knowledge Base:

233209 XADM: Windows 2000 Contacts and Users

233207 XADM: Mail-Enabled and Mailbox-Enabled Objects in Microsoft Exchange 2000 Server

Additional query words: exch2kp2w

Keywords: kbbug kberrmsg kbfix KB273732

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