Microsoft Forefront Security 2010 for Exchange Server

The Forefront Security 2010 for Exchange Server will provide fast and effective detection of viruses, worms, spyware, and spam by integrating multiple scanning engines from industry-leading security partners. Its comprehensive messaging protection also prevents out-of-policy content from entering or leaving your network using content filtering.
Through integration with Exchange Server and core Microsoft infrastructure technologies, Forefront Security 2010 for Exchange Server provides high performance, easily customized antivirus and antispam optimized for Exchange environments. It also integrates with Forefront Online Security for Exchange to provide the defense-in-depth benefits of hosted and on-premise filtering in a single solution.System requirements1 GHz or faster processor
1 GB of RAM, in addition to that required for Microsoft Exchange Server (2 GB recommended)
2 GB of available disk space, in addition to that required for Microsoft Exchange Server
Microsoft Exchange Server 2007 SP1 or Microsoft Exchange Server 2010
NET Framework 3.0
PowerShell 1.0
MSXML 6.0 SP1
Client Access Server (CAS). Required only for use with the on-demand scan with Exchange Server 2010.