or ARC I see two unknowns, a minor one about how to do algorithm rotation, and a major one whether its audit trail will be adequate to do un-DMARC-ing. For that last question I expect there could be one answer for mail systems large enough to have their own models of where all the mail comes from and a different answer for smaller systems.
Can't remember whether there was an explicit list of unknowns-of-interest for ARC, developed previously. The above look like very good items for the list.
What else should be evaluated, during experimental implementation and deployment?
d/ -- Dave Crocker Brandenburg InternetWorking bbiw.net _______________________________________________ dmarc mailing list [email protected] https://www.ietf.org/mailman/listinfo/dmarc
