"Eric A. Hall" <ehall(_at_)ehsco(_dot_)com>
Any comments on this approach?
It sounds like the first users of this would block some legitimate mail
and no spam.
Some legitimate mail, because all mail-blocking schemes do. No spam,
because neither spammers like Postmastergeneral nor clueless sites like
those Korean schools will add MS RRs in their zone files.
This, MS probably wouldn't succeed: Noone would be the first to use it,
and if noone uses MS, noone will add it to their zone files (except those
few admins who added LOC records).
--Arnt