Unfortunately I believe that Sender-ID is about to get kicked to the curb because of a license imposed by Microsoft on one of the components of the standard. They call this component the Purported Responsible Address or PRA for short. Their license (which I have written about before) is imposed based on a patent application they have pending with the USPTO.
September 11, 2004
Of Standards Bodies, Competitive Wedgies and Marbles?
I have been writing now for several weeks about events taking place within the IETF's MARID working group. Today is, purportedly, the "last call" for Sender-ID, which was supposed to become a new standards track anti-forgery proposal under MARID's charter.