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

# Configure Reverse DNS (rDNS)

> Configure custom reverse DNS (PTR records) for your FlashRDP server IP from the Client Area to improve mail server deliverability and routing.

Reverse DNS (rDNS), or a PTR record, resolves an IP address back to a hostname. Setting up rDNS is essential if you are running a mail server, as it helps prevent your emails from being marked as spam.

<Warning>
  **Prerequisite:** Before you can set a PTR record, the Forward DNS (A or AAAA record) for your chosen hostname must already resolve to your server's IP address. If it does not, the system will not allow you to save the rDNS record.
</Warning>

### How to set a custom PTR record

<Steps>
  <Step title="Update Forward DNS">
    First, log in to your domain registrar or DNS provider (e.g., Cloudflare) and create an **A Record** (for IPv4) or **AAAA Record** (for IPv6) pointing your desired hostname (e.g., `server.yourdomain.com`) to your server's IP address. Wait a few minutes for this to propagate.
  </Step>

  <Step title="Access Your Server">
    1. Log in to the [client portal](https://billing.flashrdp.com).
    2. Click on **Services** > **My Services** from the main navigation menu.
    3. Find your active server in the list and click anywhere on the row to open the management panel.
  </Step>

  <Step title="Open Network Settings">
    Scroll down the server management page and click on the **Network** tab.
  </Step>

  <Step title="Configure rDNS">
    Scroll down to the **Reverse DNS (PTR Records)** section.
  </Step>

  <Step title="Save and Propagate">
    Enter your desired hostname (the one you set the A record for) and click save. Within minutes, your rDNS will propagate globally.
  </Step>
</Steps>