Add the infomaniak DKIM on Cloudflare

This guide explains what DKIM to add to secure Infomaniak messaging if it is structured around a domain name whose DNS are Cloudflare.

Preamble

• If you manage your e-mails at Infomaniak, as well as the associated domain name, but the DNS management is at Cloudflare, then you need to add a DKIM to the Cloudflare interface.

Add DKIM to Cloudflare

Prerequisites

• Be aware of this other guide to allow you to display the DKIM corresponding to your Infomaniak email.
• Display the DKIM so you can copy and paste it. Example:
  • 

Then follow the procedure below to enable DKIM correctly improving the security and delivability of emails for the domain concerned:

1. Click here to access your Cloudflare account.
2. Select the domain concerned.
3. In the DNS section, search for and delete all NS records for "_domainkey"pointing towards Infomaniak.
4. Add a new TXT record for DKIM (it's not enough to paste the visible DKIM signature on the Infomaniak Manager to make it work):
   1. Type : TXT
   2. Nom : Enter only the DKIM selector provided by Infomaniak (without "_domainkey" or the domain name) therefore e.g. 20240112…
   3. Contenu : Paste the DKIM public key provided by Infomaniak (which comes after p=)
   4. TTL : Auto
5. Save the changes.
   • Any DNS addition/amendment may take up to 48 hours to spread.
6. Use an online DKIM verification tool to confirm the configuration.