On Sun, Mar 22, 2015 at 8:06 AM, J. Gomez <[email protected]> wrote:
> I consider that any "3rd party authorization scheme" for DMARC will fail > --not to fail technically, but to fail be implemented in the real world-- > if it happens to need, to be workable, the nuanced and labour-intensive > participation of the sender's domain Owner. > I have to agree. I've seen nothing since the advent of SPF to convince me otherwise. Several have been proposed and none have seen anything more than trivial uptake, even when written down as experimental RFCs or made freely available in open source code. An argument has been made that they got no uptake because they are flawed, but I think that's myopic; the ones that are available are not set in stone and thus could be easily mutated into something more palatable if there was actual interest. That nobody has proposed anything of the form "We would implement third-party scheme X if only it had Y done to it" tells me that the general idea is a dead end, not that the specific proposals on the table are faulty. -MSK
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