internetnews.com: Microsoft, AOL Resurrect Sender ID

“AOL is back in the Microsoft Sender ID for E-Mail camp after
the Redmond, Wash., software giant announced it had made two
significant changes to its specification and filed them with the
Internet Engineering Task Force (IETF) Monday.

“Ryan Hamlin, Microsoft’s general manager of anti-spam
technology and strategy group, said the company has amended one of
its patent applications to distinguish Sender ID for E-Mail
authentication from Sender Policy Framework (SPF) authentication
records, the information that determines whether an e-mail is truly
coming from the domain it claims to…”