> http://www.postfix.org/uce.html > And I would bet you have reject_unknown_client in there somewhere. > --Eric
Close, but that doesn't address my question. I actually have check_client_access hash:/etc/postfix/unknown_ptr.class Which has unknown unknown_ptr.class And my unknown_ptr.class = check_policy_service unix:private/ptr_policy, ... The ptr_policy.pl actually generates the 550 or a DUNNO if the IP is one of their MX records or is approved by SPF. I still havnt found a documented way to make postfix sufficiently happy with just a PTR record (without the matching A record). Though I just thought of my own solution, if the administrative overhead remains high I'll just modify the ptr_policy.pl to do its own dns lookup and if PTR but no matching A return DUNNO and log so I can build a list and notify admins while still letting mail flow. :) thanks
