>Why don't all the major mail admin get together a set 1/1/2004 as the year >of the .PTR. Similiar to Y2k there will be able time to alert people to the >fact that on that day all the major smtp servers will be blocking mail from >servers without a matching hostname and .ptr record.
A "credentials" campaign, and more that just for PTR, makes tons of sense. And, while we are at it, let's throw in SPF/DSP for those people who find it "impossible" to get a PTR. SPF/DSP is free and easy and immediate. btw, reject_unknown_client will not work with just any PTR hostname. The PTR hostname must have a A record whose RDATA IP matches the IP of the PTR record: D.C.B.A..in-addr.arpa. PTR host.name. must resolve to: host.name A A.B.C.D Len
