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FIX: You receive a "Bad Request" error message when you try to access Outlook Web App in a Forefront Threat Management Gateway 2010 environment when you use RSA SecurID authentication delegation
Article ID: 2654193 - View products that this article applies to.
Consider the following scenario:
In this scenario, when you provide your user credentials to access the Outlook Web App site, you do not receive access to the site. Instead, you receive the following error message:
You expect to be provided access to your Inbox or to the first page of Outlook Web App.
Note A similar configuration works correctly with Internet Security and Acceleration (ISA) Server 2006.
To resolve this issue, install the hotfix package that is described in the following Microsoft Knowledge Base article:
(http://support.microsoft.com/kb/2649961/ )Rollup 1 for Forefront Threat Management Gateway (TMG) 2010 Service Pack 2
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/824684/ )Description of the standard terminology that is used to describe Microsoft software updates
Article ID: 2654193 - Last Review: January 11, 2012 - Revision: 1.0