John Levine wrote: >>>> * levine-adsp-00 provides a superset of methods for *how* to >>>> determine if the domain exists: the NXDOMAIN test and the "check MX& >>>> A/AAAA" method from SMTP. It leaves it up to the implementation to >>>> choose the algorithm that works best for it. >>>> > > What I should have said was that recipients MUST do the NXDOMAIN check > and SHOULD do the more comprehensive 2821 check. It's SHOULD since it > is my impression that many MTAs do it anyway, so there's no incremental > cost. > > This gives senders a baseline that they know receivers will do, and if > the receivers are more sceptical, that doesn't hurt the senders. > > R's, > John >
That would be fine. Eliot _______________________________________________ NOTE WELL: This list operates according to http://mipassoc.org/dkim/ietf-list-rules.html
