Hi Everyone, OK, I'm thoroughly confused. Number 1 by my OLD ISP not deleting the PTR records for mail.cocoanet.us and mail.dantesinfernophotography.com and now they can't delete them. Then add that my new ISP says I have to override their PTR records for the new IPs for the above mentioned sites! So, here's the info: My External Subnet 22.214.171.124/29 mail.cocoanet.us should be using 126.96.36.199 mail.dantesinfernophotography.com should be using 188.8.131.52 I've never set up reverse DNS for a subnet that has multiple domains. What is the best/proper way to do this?