xaf via mailop a écrit le 28/08/2026 à 03:02 :
> Benny Pedersen via mailop a écrit le 27/08/2026 à 21:39 :
>>> As Rainer suggests, a single DKIM key for all and a CNAME record for 
>>> each domain is arguably the best solution.
>> CNAME breaks DNSSEC
> No, that's fine, but DNSSEC must also be enabled on each external target (MX, 
> CNAME).
> The target MX or CNAME domain must be signed to be compatible with all 
> domains, whether signed or unsigned.

Sorry, the target MX domain should only be signed if you wish to use DANE.

xaf

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