On Tue, Dec 03, 2019 at 04:41:27PM GMT, Chris Bennett wrote: > > [...] > Dec 2 22:36:28 freedomforlife smtpd[78001]: cd3e9bc4ab696630 smtp connected > address=172.58.46.253 host=<unknown> > Dec 2 22:36:28 freedomforlife smtpd[78001]: cd3e9bc4ab696630 smtp > failed-command command="" result="550 no rDNS is so 80s" > Dec 2 22:36:28 freedomforlife smtpd[78001]: cd3e9bc4ab696630 smtp > disconnected reason=quit > [...] > On Tue, Dec 03, 2019 at 05:57:24PM GMT, Chris Bennett wrote: > > [...] > filter check_rdns phase connect match !rdns \ > disconnect "550 no rDNS is so 80s" > [...] >
Chris, That'd be it. You're using a filter which disconnects a session with a message "550 no rDNS is so 80s", for every IP address which doesn't resolve to a reverse DNS. Regards, Raf
