Article ID: 2484147 - Last Review: July 7, 2011 - Revision: 1.0

"HTTP Error 400 Bad Request" error message when you use OWA to log on to a newly created Exchange Server 2007 mailbox

View products that this article applies to.
System TipThis article applies to a different operating system than the one you are using. Article content that may not be relevant to you is disabled.
Expand all | Collapse all

SYMPTOMS

Consider the following scenario:
  • In a mixed Microsoft Exchange Server 2010 and Microsoft Exchange Server 2007 environment, an Exchange Server 2010 Client Access server handles the proxy requests for the Exchange Server 2007 Client Access server.
  • You create a new mailbox on an Exchange Server 2007 server.
  • You log on to this mailbox by using Outlook Web App (OWA).

    Note This is the first time that you log on to this mailbox.
  • You are automatically routed to the language selection page in OWA.
  • You select a language, and then you click the OK button.
In this scenario, you receive the following error message:
HTTP Error 400 Bad Request
Back to the top

RESOLUTION

To resolve this issue, install the following update rollup:
2509911  (http://support.microsoft.com/kb/2509911/ ) Description of Update Rollup 4 for Exchange Server 2007 Service Pack 3
Back to the top

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Back to the top

MORE INFORMATION

For more information about Proxying and Redirection, visit the following Microsoft website:
Back to the top
APPLIES TO
  • Microsoft Exchange Server 2010 Service Pack 1, when used with:
    • Microsoft Exchange Server 2010 Enterprise
    • Microsoft Exchange Server 2010 Standard
Back to the top
Keywords: 
kbqfe kbfix kbhotfixrollup kbexpertiseinter kbsurveynew KB2484147
Back to the top