Franck Martin writes: > I'm not sure it is wise to encourage the use of "invalid" domains > in any of the email headers.
Remember, we think *all* of the mitigations should be discouraged in favor of not permitting posts from "p=reject" domains. But we also know that will be unacceptable to most of our list operators. > The use of the .INVALID is likely to create problems in the future, > if not already with reputation systems. We'll warn our users (list operators) of the troubles we know of. Corrupting an existing mailbox in the header of a post in any way is at the bottom of the list of the things we think a mailing list should do, of course (unless it's part of the terms of service of the list -- eg, anonymous lists). BTW, I'm not particularly worried about reputation systems for spam- fighting. I believe it's a fundamentally unsound idea, aiming at the one resource that we *know* spammers put zero value on: reputation of Internet addresses. Both their own (because they keep those carefully hidden), and the reputations of the hosts, individuals, and services they parasitize. Regards, _______________________________________________ dmarc mailing list dmarc@ietf.org https://www.ietf.org/mailman/listinfo/dmarc
