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You cannot open a mailbox that has a "#" character in the primary SMTP email address by using OWA in an Exchange Server 2007 environment

Consider the following scenario:
  • You log on to a Microsoft Exchange Server 2007 mailbox through Outlook Web Access (OWA) 2007 by using a user account.
  • You click the user-name button in the top right corner of OWA to open an additional mailbox.
  • Your user account has full access permissions to this additional mailbox.
  • The additional mailbox has a "#" character in the primary Simple Mail Transfer Protocol (SMTP) email address.
In this scenario, a second browser window appears. Additionally, you receive the following error message:

HTTP Error 404.0 - Not Found
The resource you are looking for has been removed, had its name changed, or is temporarily unavailable.
 This issue occurs because the URL is interpreted incorrectly by the explicit-logon method that is used in OWA 2007.
To resolve this issue, install the following update rollup:
2509911 Description of Update Rollup 4 for Exchange Server 2007 Service Pack 3
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

Article ID: 2517337 - Last Review: 07/07/2011 14:28:00 - Revision: 1.0

  • Microsoft Exchange Server 2007 Service Pack 3
  • kbqfe kbfix kbsurveynew kbexpertiseinter kbhotfixrollup KB2517337