Meng Weng Wong <mengwong(_at_)dumbo(_dot_)pobox(_dot_)com> writes:
I agree. Sender ID is aimed more at MUAs anyway, so it
isn't that big a deal if MTAs have trouble with it --- it's
simply not that relevant to MTAs. What MTAs need to pay
attention to is Unified SPF which will be unencumbered and
is already well on its way.
In which case why is it being considered by (and developed in) the
"MTA Authorization Records in DNS" Working group? If it is aimed at
MUAs and is not relevant to MTAs then it should be rejected (or should
already have been rejected) as being off-charter.