Updated: July 9, 2020 (December 20, 2010)

Antigen Products

As managing vice president, Rob Helm covers Microsoft collaboration and content management. His 25-plus years of experience analyzing Microsoft’s technology... more

Antigen products are still available to Forefront server security customers to protect older Microsoft product versions. Customers can acquire the Antigen products through downgrades from Forefront server security products, described in Microsoft’s Product Use Rights document. In July 2009, Microsoft released SP2 for Antigen products with new antispam technology acquired through a partnership with Cloudmark. Microsoft says this will result in better antispam protection, including higher detection rates and fewer false positives. Although multiple scanning engines can still be configured, SP2 offers fewer antimalware scanning engines as alternatives.

Product	Function	Latest Version and Service Pack	Mainstream Support Ends
Antigen for Exchange	Antivirus for Exchange 2003	9.0 SP2: July 1, 2009	Oct. 11, 2011
Antigen for SMTP Gateways	Antivirus for Internet e-mail services on Windows	9.0 SP2: July 1, 2009	Oct. 11, 2011
Antigen Spam

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