How do I set up reverse DNS?
Follow these steps if you’re not getting an internet connection.
Customers that have requested a Static IP address configuration from us, may wish to have a reverse DNS (Domain Name System) entry put in place on our nameservers.
This is usually a requirement when sending email directly from your own server and provides an additional check for the recipients servers to validate the authenticity of your communication. Should you require this setup, please send an email to email@example.com outlining the IP address and the hostname it is to be mapped to.