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Add the Infomaniak DKIM on Cloudflare
This guide explains which DKIM to add to secure Infomaniak messaging if it revolves around a domain name whose DNS is that of Cloudflare.
Preamble
- If you manage your emails at Infomaniak, as well as the associated domain name, but the DNS management is with Cloudflare, then you need to add the DKIM on the Cloudflare interface.
Add a DKIM on Cloudflare
Prerequisites
- Refer to this other guide to allow you to display the DKIM corresponding to your Infomaniak messaging.
- Display the DKIM to be able to copy-paste it. Example:
Follow the procedure below to correctly activate DKIM, thereby improving the security and deliverability of emails for the domain in question:
- Click here to access your Cloudflare account.
- Select the domain in question.
- In the DNS section, search for and delete any NS records for "
_domainkey" pointing to Infomaniak. - Click the Add a record (
Add record) button to open the input form. - Fill in the fields using the data obtained from the Infomaniak Manager, respecting the standard configuration for a TXT type DKIM record:
| Cloudflare Field | Value to Enter | Important Notes |
|---|---|---|
| Type | TXT (text) | Choose the standard type for DKIM keys. |
| Name (Host) | The DKIM selector (e.g. 20240112) | Enter only the selector as Cloudflare automatically adds the domain name and the suffix ._domainkey for you. Refer to the Cloudflare documentation if necessary. |
| Content (Value) | The public key (the long string) | Paste the entire DKIM public key provided (what comes after p=) |
| TTL | Auto | Leave the default value for optimal management by Cloudflare. |
Make sure the Proxy Status (cloud) is set to DNS Only (grayed out) for email authentication records.
Save and Propagation
After carefully verifying the accuracy of the Selector and Public Key, click the Save button. This validates the addition of your DKIM record to the Cloudflare DNS zone.
Any DNS addition/modification can take up to 48 hours to propagate.
Once the waiting period has elapsed, you can use online verification tools to confirm that the DKIM record is published and valid. This validation ensures that your Infomaniak emails will be properly signed and their deliverability will be optimal.