You have the power of creating/deleting/modifying rDNS entries directly from your Control Panel at https://rw.limestonenetworks.com/dns/reversedns.html
When making changes to rDNS entries, please allow up to 48 hours for everything to fully propagate.
If you have any more questions regarding rDNS please visit "What is rDNS?" where you will find resources to help you with rDNS. If additional assistance is required, simply let us know.