Dave Crocker <dhc(_at_)dcrocker(_dot_)net> writes:
If client and server do no share at least one MUST, then there will be
non-interoperability.
Yes. It would also be nice if the world could avoid doing duplicate DNS
queries for spf2 records. I don't think a single person has disagreed
with that design goal and I noted this in my earlier comments, so I hope
that is addressed in the next revision of the specifications. One or
the other forever or both with a pre-specified flag day in the
not-too-distant future.
Daniel
--
Daniel Quinlan
http://www.pathname.com/~quinlan/