Alessandro Vesely <ves...@tana.it> writes: > Perhaps we could formalize Sender:'s role by inventing some kind of > p=some, which requires Sender: alignment. The From: domain has to > remain the consumer of aggregate reports. That way it can learn which > senders redistribute its mail.
This proposal seems spot on. Some domain owners believe they have a magic switch called p=reject that prevents unauthorized third parties from sending mail with From: field that has their @domain. This is not so, and mailing lists are one of the reasons why major email providers do not respect their policy. I have switched the domains I control from p=quarantine to p=none. I would use "p=sender-quarantine" or even "p=sender-reject" if it was available. At the other end of the spectrum, domains which never ever participate in mailing lists or mail forwarding need some kind of "p=reject-yes-really-I-mean-it", to stop recipients from ignoring the policy. _______________________________________________ dmarc mailing list dmarc@ietf.org https://www.ietf.org/mailman/listinfo/dmarc
