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How to configure the reverse DNS of a failover IP

Reviewed on 27 March 2023Published on 13 April 2022

You can edit the reverse DNS of a failover IP address to a custom value. This can be useful when you want to send email from your Dedibox, as certain remote mail servers do not accept mails coming from generic reverse hostnames.

Security & Identity (IAM):

You may need certain IAM permissions to carry out some actions described on this page. This means:

  • you are the Owner of the Scaleway Organization in which the actions will be carried out, or
  • you are an IAM user of the Organization, with a policy granting you the necessary permission sets
  1. Click Dedibox in the Compute section of the side menu.

  2. Click the Failover IPs tab to display a list of your failover IPs.

  3. Click «See more Icon» next to the failover IP you want to edit. A drop down menu displays.

  4. Click Edit reverse. A pop-up displays.


    You can click «See more Icon» next to the IP you want to configure in the listing of the failover IPs in the left.

  5. Enter a new IPv4 reverse DNS and click Save changes.


    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.

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