On 18/12/2016 09:19, Michael Richardson wrote:
Theodore Ts'o <tytso(_at_)mit(_dot_)edu> wrote:
> Yeah, it's the "sometimes mail gets lost" problem which is the main
> issue. So it might actually be better to have the mailing list
> software refuse to accept a mailing list posting from a domain with a
> DMARC record, and it can be bounced back to the sender immediately
> with a "sorry, try again using some e-mail address that does not have
> DMARC support".
I really think that this is the right answer for our community.
I don't. Accept the posting but also send a friendly warning seems to do less
damage.
The DMARC policy is not to forward, and we should respect it.
Why does DMARC, which is a broken solution, deserve that much respect?
When ARC gets standardized, we should implement it.
Assuming it solves the problem, sure. But if it doesn't, the problem will
get much worse.
Brian