Exchange Server Public IP Reverse DNS
Posted on 2015-02-21
We have an Exchange server with an assigned public IP. Our website/email is hosted by our ISP. When email is sent from our Exchange server, reverse DNS fails and we can't send email to certain clients.
I am going to set up a PTR record with our ISP to forward the email automatically to our Exchange server so I can implement reverse DNS to the exchange server's public IP address.
if our company's website/email domain name is mycompany.com and the exchange server public ip is 10.9.8.7 then should the reverse DNS point to mycompany.com, mail.company.com or what?
Lastly, is this the only solution to reconciling Reverse DNS to our Exchange Server?