Static IP Addresses - Reverse DNS Policy
Customers with a static IP address, or range of IP addresses are free to change the reverse DNS as required.
By default the reverse DNS will be ip-address.in-addr.fast.co.uk for Broadband ADSL customers or ip-address.dial.fast.co.uk for Static IP Dialup customers, depending upon the number of IP addresses you have.
If you prefer, you can set the reverse DNS to whatever you wish, however we must either be able to prove you are the owner of the domain name via the public WHOIS, or have the corresponding A record pointed to your IP address(es) first.
If you would like to change the reverse DNS please contact our technical support team.