On Thu 05/Dec/2024 21:02:45 +0100 Tero Kivinen wrote:
Richard Clayton writes:
[...]
>----------------------------------------------------------------------
7.4. Interoperability Considerations
...
| It is therefore critical that Mail Receivers MUST NOT reject
| incoming messages solely on the basis of a "p=reject" policy by
| the sending domain. Mail Receivers must use the DMARC policy as
| part of their disposition decision, along with other knowledge and
| analysis.
I always understood that "MUST NOT except when you have thought about
it" was spelled "SHOULD NOT". Why does this draft not follow that
approach ?
There is no exceptions there. It is proper MUST. All Mail Receivers
MUST NOT reject incoming messages just because they have p=reject.
Fully agreed. One way to implement it is to select the domains that, by your
knowledge, never participate in mailing lists (amazon, paypal, ...) and honor
/their/ DMARC policy.
Indirect mail flows are the primary problem to solve...
Best
Ale
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