On 6/1/2015 1:28 PM, Rich Wales wrote: > >> The reject_non_fqdn_hostname restriction will not block any of these. > > How about reject_unknown_reverse_client_hostname instead? This one is > supposed to reject clients with no IP-address-to-name mapping. > > Rich Wales > ri...@richw.org >
Yes, reject_unknown_reverse_client_hostname will block these, and is (mostly) safe as many big mail providers refuse service to clients with no rDNS. -- Noel Jones
