>ReSenders haven't introduced any interoperability issues. DMARC has. How >about:
Indeed. I agree with the advice to refrain from blaming the victim. > o MTAs sending email on behalf of multiple domains may require > Domain Owners to provide DKIM keys to use DKIM to avoid SPF > alignment issues. Managing DKIM keys with a third party has > security risks which should be carefully managed. > >This can generally be done through CNAMES or subdomain delegation. I've yet >to see anyone handle this situation by actually exchanging private keys across >an administrative boundary. A manager at a well known ESP told me that one of the free mail suspects gave them a DKIM signing key. (I forget whether it was A or Y.) R's, John _______________________________________________ dmarc mailing list [email protected] https://www.ietf.org/mailman/listinfo/dmarc
