On Fri, Apr 18, 2014 at 4:50 AM, Murray S. Kucherawy <[email protected]> wrote: >> >> The alignment domain-list solution seems trivial to me, and it works >> without active support from the sender, which is nice. > > > How does it work without active support from the sender? Doesn't the sender > first have to ensure it's in that list? That's kind of an important step > for a list operator with a new subscriber from a "p=reject" domain. >
Again, I have not been proposing this as a solution for mailing lists. It solves at least two other problems: third-party bounce handlers, and using your own domain with some large mail providers like gmail. In either case, the domain owner can use DMARC without requiring any support from the sender. This is not theoretical -- we have customers who are currently stalled on DMARC implementations and who could move forward if this were included in the spec. If you are willing to accept additional DNS lookups, you actually could use this to alleviate the mailing list problem, just by adding an include syntax for aligned domain lists. That would create a mechanism for people to make public, curated MLM whitelists. I hesitate to bring that up because I imagine some people won't like the idea of more DNS lookups, and I don't want the entire idea to get shot down by association. _______________________________________________ dmarc mailing list [email protected] https://www.ietf.org/mailman/listinfo/dmarc
