On May 24, 2010, at 7:55 PM, Steve Atkins wrote:
On May 24, 2010, at 6:38 PM, John Levine wrote:
Refusing signups from those domains is probably a bit extreme, though.
What about a warning at signup time if a "discardable" ADSP record is
found for the registrant's domain?
That doesn't help. In the IETF's scenario, domain A sent mail which
was marked discardable to the list, and recipients at domain B were
rejecting it and the people at B got bounced off the list. I'd have
to squint awfully hard to come up with an argument that it is wrong to
reject unsigned discardable mail at SMTP time.
I think that Murray was suggesting that in addition to rejecting all
mail from domain A it would be polite to also warn anyone from
domain A who subscribes to the list that their mail would be
rejected (which seems good UX design to me).
Yup, I think this would be an appropriate addition to the BCP document.
J.D. Falk <jdfalk(_at_)returnpath(_dot_)net>
Return Path Inc
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