> ## Documentation Index
> Fetch the complete documentation index at: https://speedypage.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Configure rDNS records

> How to set up reverse DNS (rDNS) records for your SpeedyPage VPS IP addresses.

Reverse DNS (rDNS) maps an IP address back to a hostname. Many mail servers reject email from IPs without a valid rDNS record, so this is worth setting up if you run a mail server on your VPS.

## Prerequisites

Create a forward DNS record (A or AAAA) pointing your hostname to the server's IP address before setting rDNS. The record won't work without a matching forward entry.

## Set up rDNS

<Steps>
  <Step title="Open your VPS in the client area">
    Log in to [my.speedypage.com](https://my.speedypage.com) and click **Manage** on the server you want to configure.
  </Step>

  <Step title="Find your IP address">
    Go to the **Network** tab and find the IP address you want to set rDNS for.
  </Step>

  <Step title="Set the hostname">
    Click **Reverse DNS**, enter the hostname you want the IP to resolve to, and click **Update**.
  </Step>
</Steps>

## Verify the record

After a few minutes, confirm the rDNS record is working by running this command in a terminal:

```bash theme={null}
dig -x YOUR_IP_ADDRESS +short
```

This should return the hostname you entered.