> I suppose the tl;dr version of my last reply is: > > The registration problem is not a red herring because it doesn't exist, but > because it > is intractable. Thus, any response to the third-party problem that relies on > a solution > to that problem (which includes ATPS, DSAP, and TPA) is probably not viable.
+1. -- Terry From: dmarc [mailto:[email protected]] On Behalf Of Murray S. Kucherawy Sent: Saturday, May 9, 2015 11:14 PM To: Anne Bennett Cc: [email protected] Subject: Re: [dmarc-ietf] DMARC ATPS Interop Note On Sat, May 9, 2015 at 10:33 PM, Anne Bennett <[email protected]> wrote: Hmm, Hector, I think you've forced me to convince myself that you're on the right track: I think that the "registration problem" is a red herring after all. There's no deterministic way to decide what's a legitimate mailing list (or other re-signer), any more than there's any way to deterministically decide what's a legitimate originator. Those determinations are made heuristically outside DMARC. I suppose the tl;dr version of my last reply is: The registration problem is not a red herring because it doesn't exist, but because it is intractable. Thus, any response to the third-party problem that relies on a solution to that problem (which includes ATPS, DSAP, and TPA) is probably not viable. -MSK _______________________________________________ dmarc mailing list [email protected] https://www.ietf.org/mailman/listinfo/dmarc
