We are having a problem with getting emails kicked back to us with errors of no PTR record found, now that we have switched to AT&T for our Internet provider. AT&T flatly refuses to add a PTR on their end, since we host the Domains, and the public DNS servers.
We host about 5 domains, and our own public DNS on two Windows 2003servers. The email is on an in-house Exchange 2003 server.
We have added (and perhaps not correctly) PTR records for each domain into both public DNS servers.
I have done a test using DNSStuff.com to check for a PTR record for each domain, and it shows one was found.
Ive done a ton of Google search and have not been able to located exactly where it needs to go, and the exact syntax it needs to have. I have also searched and read everything I could find on the experts-exchange.com site.
I have added a PTR into the root of each domain listed in DNS, and left the IP address black and so the server lists the IP address as Same as parent. Im not sure if this is correct or not, but we are still getting failures.
Is there a source out there or can someone tell me, exactly how we should go about adding a PTR record on a Windows 2003 DNS server and what the syntax should be?