Am 2024-08-20 um 05:07 schrieb Barry Leiba:
The “dkim” sub-element is
optional as not all messages are signed, while there MUST be at least
one “spf” sub-element.
As I read DMARCbis, I think it requires the use of SPF *or* DKIM, but
does not *require* SPF. A sender doesn’t have to supply an SPF record,
and a receiver doesn’t have to check SPF if there is aligned DKIM. What
do I put in the spf sub-element if your domain doesn’t use SPF or if I
didn’t check it?
In such a case you would put in "spf" result=none. However, it's a
reasonable relaxation to make the "spf" element optional.
Regards,
Matt
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