Microsoft Corp. will soon put some bite into its Sender ID antispam plans by checking 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, according to a company executive.
The company is strongly urging e-mail providers and Internet service providers (ISPs) to publish Sender Policy Framework (SPF) records that identify their e-mail servers in the domain name system (DNS) by mid-September. Microsoft will begin matching the source of inbound e-mail to the Internet Protocol (IP) addresses of e-mail servers listed in that sending domain's SPF record by Oct. 1. Messages that fail the check will not be rejected, but will be further scrutinized and filtered, said Craig Spiezle, director of Microsoft's Safety Technology and Strategy Group.
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