"Make sure your PTR and A records match. For every IP address, there should be a matching PTR record in the in-addr.arpa domain. If a host is multi-homed, (more than one IP address) make sure that all IP addresses have a corresponding PTR record (not just the first one)."
Apparently, I'm led to believe that postfix in doing lookups only takes the first answer it gets, therefore if DNS returns 2 or more, and the first entry for whatever reason has no record then pf fails the lookup under unknown client hostname. Can someone in the know explain why this is so? (please., no assumptions, there only a couple people on this list with factual knowledge, I'm not interested in foo's opinion, or bars opinion, I'm looking for executive's decisive reason )
