On Mon, 14 Sep 2020 15:08:57 +0200 Matus UHLAR - fantomas wrote:
> last time I > checked, google, aol, yahoo SMTP servers used HELO strings that did > not resolve back to those IPs. I just looked at few and they all have HELO matching the recorded rDNS. Are you basing that on PDS_NO_HELO_DNS? That rule FP'ed on any server using IPv6 because it only checked for IPv4 rDNS. It's gone now, I wonder if anyone tried fixing it before it was removed.
