On Fri, Oct 07, 2022 at 03:01:17PM +0200, Matus UHLAR - fantomas wrote: > > the _DKIMDOMAIN_ can contain multiple domains if mail is signed using > multiple valid keys.
Not a problem, as AskDNS doc says: "Tags which produce multiple values will result in multiple queries launched, each with an expanded template using one of the tag values. An example is a DKIMDOMAIN tag which yields a list of signing domains, one for each valid signature in a signed message." _DKIMDOMAIN_ contains verified domains. _AUTHORDOMAIN_ is simply the From: address without any verification. It has nothing to do with DKIM. So it would make no sense to use this.
