As a result, I think it would be better for us to either not touch the
problem domain addressed by SPF, or to create a standard that is
(largely) compatible with the SPF install base.
perhaps i wasn't in the room when the secret handshake was
disseminated, but i was unable to find reference to this in the
charter.
as sympathetic as i am to arguments concerning the installed base, that
is only one of many competing concerns for the group.
/mtr