Reverse DNS (rDNS) translates an IP address back into a hostname. While standard DNS maps a name to an IP, rDNS does the opposite.
Configuring a valid PTR record is critical for mail servers. If you plan to send email from your VPS, having a correct Reverse DNS setup is mandatory to avoid Spam folders.
Prerequisite: The A-Record Check
Before setting your Reverse DNS, ensure that a valid A Record (Forward DNS) already exists for that hostname at your domain registrar.
Example: If you want to set the PTR to
Before setting your Reverse DNS, ensure that a valid A Record (Forward DNS) already exists for that hostname at your domain registrar.
Example: If you want to set the PTR to
server.domain.com, ensure that server.domain.com actually resolves to your VPS IP address first.
How to configure rDNS in the Dashboard
You can manage PTR records for both your IPv4 and IPv6 addresses directly in MyTilaa.
- Log in to the MyTilaa Dashboard.
- Go to VPS and select your server.
- Navigate to the Network tab.
- Click the Details button next to the network interface.
- Locate the IP address you want to configure and click Edit.
- Enter your desired hostname (e.g.,
mail.yourdomain.com). - Click Save.
Propagation Time:
DNS changes can take some time to propagate across the internet. Usually, rDNS updates are visible within 1 to 4 hours.
DNS changes can take some time to propagate across the internet. Usually, rDNS updates are visible within 1 to 4 hours.
IPv6 Reverse DNS
You can also set rDNS for your IPv6 addresses. Since you have a large subnet (/64), you typically only need to set the PTR record for the specific IPv6 address that your mail server uses for outgoing traffic.