On May 28, 2008, at 2:01 PM, J D Falk wrote:
So, my proposal:
1. flip a coin at MAAWG in a couple weeks (no reason to wait for
IETF 72) to decide whether to mandate an existence/validity check;
MAAWG is not an open forum.
2. add an appropriately named flag to ADSP to allow domain owners to
say "this same policy applies to everything within this namespace,"
with appropriate warnings that verifiers may ignore it.
There is already a flag saying just the opposite. Such a construct,
lacking any recommended strategies, might induce receiving hosts to
walk up domain trees. Such behaviour could lead to serious problems
beyond the control of those concerned only with sending email.
-Doug
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