Article ID: 963029 - View products that this article applies to.
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After you create a file filter by using selected file types, Microsoft Forefront Security for Exchange server does not correctly detect MP3 files.
To resolve this problem, install Forefront Security for Exchange Server with Service Pack 2 (SP2). Forefront Security for Exchange Server with SP2 has added functionality that can detect more MP3 file header types.
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/960465/ )Description of Forefront Security for Exchange Server with Service Pack 2
Article ID: 963029 - Last Review: January 15, 2015 - Revision: 1.0