Yes. You can. If you have an Dedicated Server with us.
1. We does not provide rDNS setup on shared hosting or reseller hosting, even if you an dedicated IP.
2. IPv6 does not support rdns setup yet.
3. For VPS, we can setup for you on the main IP only with a One-time setup fee of $5.
4. If your service due within 72 hours, we will not provide rdns setup. As rdns setup is done within 24-72 hours, so if your service due within 72 hours, no point wasting time to setup.