Microsoft to Enforce Antispam Plan

"Microsoft will soon put some bite into its Sender ID antispam plans. The software giant will check e-mail messages sent to its Hotmail, MSN, and Microsoft.com mail accounts to see if they come from valid e-mail servers, as identified by the Sender ID...

The company is strongly urging e-mail providers and Internet service providers to publish, by mid-September, Sender Policy Framework records that identify their e-mail servers in the domain name system. Microsoft will begin matching the source of inbound e-mail to the Internet Protocol addresses of e-mail servers listed in that sending domain's SPF record by October 1.

Messages that fail the check will not be rejected but will be further scrutinized and filtered, says Craig Spiezle, director of Microsoft's Safety Technology and Strategy Group."

IDG News Service Report