On Wed 16/Jun/2021 18:01:08 +0200 John Levine wrote:
It appears that Alessandro Vesely <[email protected]> said:
However, to reject based just on NXDOMAIN is too harsh.
I dunno, in my experience it's quite common, and if you do, the chances of
losing a message you care
about are negligible.
It's been customary to reject NXDOMAIN in smtp.mailfrom since when I recall it.
To reject NXDOMAIN in header.from is (was) an ADSP feature which doesn't seem
to be very widespread. DMARC dropped it a long time ago.
In any event, this has nothing to do with DMARC. If for some reason you want
to do a DMARC evaluation
of a non-existent domain, you can use the organizational domain or I suppose
PSD.
It might make sense to reject that ~30% which doesn't even have an
organizational domain (dubbed totally astray in my previous post). But I still
receive From: <[email protected]> on a mailing list. Rejecting that
risks getting unsubscribed. Perhaps mailing lists deserve a special permission...
Best
Ale
--
_______________________________________________
dmarc mailing list
[email protected]
https://www.ietf.org/mailman/listinfo/dmarc
