On 21/08/2023 05:08, Jasen Betts via Exim-users wrote:
> On 2023-08-20, Jeremy Harris via Exim-users <exim-users@???> wrote:
>
>> I could guess that "-" might be viable, by analogy with
>> the "rua" line coding, but that's not really sufficient.
>> The RFC standard for DMARC doesn't mention ARC. Is there
>> one somewhere?
>
> RFC8617 (experimental)
>
> https://datatracker.ietf.org/doc/html/rfc8617
Ah, thanks. Section 7.2.2 there looks relevant.
Interesting that it only suggests the IP as required on ARC set 1.
--
Cheers,
Jeremy
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