On 3/22/23 11:22 AM, Murray S. Kucherawy wrote:
On Tue, Mar 21, 2023 at 8:37 PM Scott Kitterman
<ietf-d...@kitterman.com> wrote:
>> 1. Do receivers keep tabs on which users are using things like
>> mailing lists to differentiate users who expect to get
indirect mail vs
>> those who don't?
>>
>> The large mailbox operators might have hints about this, but
I'm not sure
>the answer would serve to further constrain the problem statement.
I think it relates to the largest challenge to the problem
statement: what distinguishes these 'bad' messages from 'good'
indirect mail flows such as mailing lists. As far as I can tell,
the answer is nothing, which leaves it challenging to produce an
effective protocol change which addresses replay that doesn't also
have substantial side effects on non-replay traffic.
I agree, but:
Do you believe knowing the answer to this question would allow us to
amend the problem statement to something that might allow a protocol
solution? My point is that I don't think it would.
The charter leaves a BCP-like document in scope as a possibility. For a
BCP, you need to know what the state of art is, obviously.
Mike
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