On Wed 12/Mar/2025 13:09:55 +0100 Alessandro Vesely wrote:
On Fri 07/Mar/2025 01:06:37 +0100 Allen Robinson wrote:
Originator signs first

Dkim2-sig: i=1 mf=m...@example.com <mailto:m...@example.com> rt=l...@listscorp.com <mailto:l...@listscorp.com> d=example.com <http:// example.com>

Listcorp.com sees that 821.From and 821.To are equal to mf= and rt= respectively, and that d= is aligned (like DMARC) to the domain of mf=. Also d= must align with 822.From for the initial hop.


Shouldn't mf= and rt= be compared with the corresponding envelope values?

There is no point in copying From: and To: into the signature, since both are signed anyway.


Sorry, it was written 821.From but I read 822.From.  My bad.


Best
Ale
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