Reverse PTR Record
Posted on 2014-02-04
I have a client that we need to email that is in Slovenia. When we attempt to send them an email we get a bounce back saying our email was not delivered due to security policies with mailhub.siol.net reporting:
"Recipient address rejected: Blocked - Your IP [XX.XXX.XXX.XXX] has no corresponding reverse (PTR) address. Ask your Internet Service Provider to assign you IP with valid reverse (PTR) record. ##"
I use Comcast as my ISP and have asked for a Reverse PTR record. I have gone to DNSStuff and executed a Reverse PTR check and it has come back that this IP Address points to my server of Mail.domain.com
Any thoughts on what to try next?