> For the complete documentation index, see [llms.txt](https://en.docs.airdesk.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://en.docs.airdesk.ai/interface/administracao/espaco/domains-and-urls/return-path.md).

# Return Path

### What is Return Path?

The Return Path is a setting that has a direct impact on the delivery of emails. This is a field in the header of emails that contains the address to which they will be sent.

The destination server will send a response to Return Path whenever the user has a full mailbox, or when the user does not exist, the server does not exist, spam, etc. If for any reason delivery does not occur, an email will be sent to Return Path.

### How to configure the Return Path

To configure the Airdesk Return Path, you must add a **CNAME** record to your domain's DNS settings, with the host **`adrp.<yourdomain.com>`**, where you must add the value:

```
rp.eu01.email.airdesk.ai
```

Example of a Return Path record:

<table><thead><tr><th width="217" align="center">Name / Host</th><th width="150" align="center">Type of Record</th><th width="194.09472259810553" align="center">Value</th><th align="center">TTL</th></tr></thead><tbody><tr><td align="center"><p><strong>adrp.@</strong> = (yourdomain.com)</p><p><strong>OR</strong></p><p><strong>adrp.&#x3C;subdomain></strong> =(subdomain.yourdomain.com)<br></p></td><td align="center"><strong>CNAME</strong></td><td align="center">rp.eu01.email.airdesk.ai</td><td align="center">900</td></tr></tbody></table>

### Return Path configuration steps

1. Access your domain manager
2. Go to DNS management for the domain you want to configure
3. Add a **CNAME** record
4. In Name/Host, add **`adrp.<yourdomain.com>`**
5. In the value add **`rp.eu01.email.airdesk.ai`**
6. Save the record

### How to validate the Return Path

After adding the data to your domain, you can validate the registration using the “Validate Records” button in the domain configuration area on Airdesk.

![](/files/ZtF2bs0xXl7HsayY3Mye)

If you need help, you should email us at <support@airdesk.ai> or talk to us directly via the chat on the [website](https://airdesk.ai/).