Hi, >> $ host 209.16.192.170 >> 170.192.16.209.in-addr.arpa domain name pointer Lanyon.com. > > but they don't match: > host Lanyon.com > Lanyon.com has address 97.74.177.132 > > 97.74.177.132 > 132.177.74.97.in-addr.arpa domain name pointer > ip-97-74-177-132.ip.secureserver.net.
Ah, right, I see. > why not just use something like 'ob.lanyon.com', in your HELO, FQDN, and > make sure that both FWD and RDNS match? This is mail that I am receiving and trying to whitelist, not mail that I am sending. Thanks, Alex
