Microsoft "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," reports IDG News Service.
"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."
