...I would also like to clarify several misstatements pertaining to our license and patents. From the onset, Microsoft has confirmed that any potential patent rights that Microsoft may eventually be granted will be provided to all users, implementers and distributors of the Sender ID specification under Microsoft's royalty free license. Microsoft will not revoke its offer to extend this license to anyone now and in perpetuity.
...
In summary, I want to assure you that Microsoft remains committed to Sender ID.
Craig Spiezle Microsoft Corporation Director, Safety Technology and Strategy Group
-- Greg Connor <gconnor@xxxxxxxxxxxx>