How to configure the reverse DNS of a failover IP on Dedibox

Reviewed on November 05, 2025

Note

Only users who have linked their Dedibox account to the Scaleway console before October 28, 2025 can manage their resources from both consoles. If you did not complete this process, you can use the Dedibox console to place orders, manage your Dedibox servers, and access the related documentation.

You can configure the reverse DNS (rDNS) of a failover IP address with a custom value. This is particularly useful when sending emails from your Dedibox, as some remote mail servers may reject messages originating from generic reverse hostnames.

Before you start

To complete the actions presented below, you must have:

A Dedibox account logged into the console
Owner status or IAM permissions allowing you to perform actions in the intended Organization
Ordered a Dedibox server and a failover IP

Click Dedibox in the Bare Metal section of the side menu.
Click the Failover IPs tab to display a list of your failover IPs.
Click more icon next to the failover IP you want to edit. A drop-down menu displays.
Click Edit reverse. A pop-up displays.

Tip
You can click more icon next to the IP you want to configure in the listing of the failover IPs on the left.
Enter a new IPv4 reverse DNS and click Save changes.

Important
Make sure that a valid and corresponding A-Record is set for the reverse DNS you want to configure.

The reverse DNS (PTR-Record) of the failover IP is being updated.