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 220.127.116.11/29 mail.cocoanet.us should be using 18.104.22.168 mail.dantesinfernophotography.com should be using 22.214.171.124 I've never set up reverse DNS for a subnet that has multiple domains. What is the best/proper way to do this?