John Levine wrote: > Not to be cynical or anything, but regardless of what we decree, I > think it's vanishingly unlikely that many systems on the public > Internet* will accept mail from a domain with only an AAAA record. I think it's vanishing unlikely that email will be useful at all, if spam filter writers keep trashing mail based on such dubious criteria. Keith _______________________________________________ IETF mailing list IETF@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf