The battle continues in the fight for authentication standards. Microsoft recently made their “proprietary” offering, Sender ID, standard fare for Hotmail, but Sender ID’s sketchy beginnings made me question whether it would ever really take hold as a strategy for making it the norm everywhere. What starts bad rarely ends good.
Now, a proposal is being considered over at the Internet Engineering Task Force which may further douse the flames of Sender ID. Some engineers think Sender ID conflicts with SPF, another authentication standard in experimental mode right now, and that Sender ID should just be stopped.
My opinion is this: adopt an authentication standard that is royalty free forever, based on open standards, under a licensing scheme that requires 100% interoperability at all times. Enough said.