Microsoft KB Archive/252088

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XADM: IFS Directory for a New Mailbox Not Created Until Mailbox Activity Occurs

Article ID: 252088

Article Last Modified on 2/26/2007


  • Microsoft Exchange 2000 Server Standard Edition

This article was previously published under Q252088


After you create a mailbox-enabled user in the Active Directory Users and Computers Microsoft Management Console (MMC) snap-in, you may notice that the Exchange Installable File System (IFS) directory for the user's mailbox is not created, (by default, this is located in the M:\domain_name\MBX folder).

Any attempt to access the mailbox through the file system returns a "path not found" error message.


Mailbox activity has not occurred, and therefore the mailbox has not been initialized.


If you log on to the newly created mailbox using a MAPI-based client (such as Microsoft Outlook 2000), or if you send a mail item to the new mailbox from another user, then the issue described above ceases because the mailbox is initialized by any of the two actions.


If you log in from Outlook Web access, this also creates the mailbox.


This behavior is by design.

Keywords: kbbug kbnofix KB252088