How to create PTR (Reverse DNS) record?
Please follow these steps to add Reverse DNS record:
1. Select My Services from the Services drop-down menu;
2. Choose a product from the list and press View Details button;
3. Press the RDNS button located at the Information page;
4. Enter your domain name in the Record field and press Create button;
5. To update an existing record simply edit it directly in the Record field and press Update.
You can also create RDNS records in the same way for subnetworks IP-addresses assigned to your account.