Remember Lily Tomlin’s switchboard operator, Ernestine? Or, the Hooterville switchboard in Green Acres? When Oliver Douglas wanted to talk with Sam Drucker, he picked up the phone, and told the operator “Connect me to Sam Drucker”, and the operator translated that to “connect Oliver to Sam’s telephone number.”  

rDNS, or “reverse DNS”, allows the process to go the other way – when your computer connects to our computer to deliver an email message, it allows our computer to look at your computer’s IP address, and see what domain name your IP address claims to be.  Where DNS is like that switchboard operator, rDNS is like caller i.d.. Just as when you call us, our caller i.d. system takes your telephone number, and translates it to your name to be displayed on our caller i.d. box, so the rDNS system takes your computer’s IP address, and translates it to your computer’s domain name.

Prefer to read it? You can do that here!

The Everything Email Marketing blogcast is provided by Get to the Inbox by ISIPP SuretyMail, the founder of the email deliverability industry. For more information about how we can help you get to the inbox go to GetToTheInbox.com