Thank you for reaching out to us about your Comcast Business account and RDNS entry. I can help you with that, please provide the following: Your name, Comcast Business account number, complete service address along with the common name and IP address related to the CName.
Hi there WalkingAdventures! We can assist with the reverse DNS; please click on our handle (ComcastBiz_Support) and send us a private message with your name, the business name, the complete service address (including city, state, ZIP, suite number, etc), and the phone or account number, as well as the IP and the corresponding domain it needs to point to. Talk to you soon!