This guide explains how to add or modify a DKIM record in a DNS zone (domain/subdomain) managed on the Infomaniak Manager.

Preamble

• The DKIM (Domain Keys Identified Mail) protocol authenticates your emails with a unique digital signature.
• It ensures that your messages have not been modified during transit and certifies the sender's identity, thus preventing spoofing by spammers.
• DKIM is enabled by default for all Mail Services whose DNS zone is managed at Infomaniak.
• All your emails are automatically signed, whether they are sent from the Infomaniak Mail app or the email software/client of your choice.

Check the DKIM record

If you have a Mail Service with Infomaniak, the simplest way is to go to the Global Security tool to easily verify and correct certain problematic records.

And when your domain name is managed elsewhere, you will find the DKIM record to add in the DNS zone:

Manually modify the DNS zone (not recommended)

To manage this type of record in a DNS zone:

1. Click here to access the management of your domain on the Infomaniak Manager (need help?).
2. Click directly on the name assigned to the domain in question.
3. Click on DNS Zone in the left sidebar.
4. Click the button to add a record:
   
5. Click the radio button DKIM to add a record.
6. Click the Next button:
   
7. Enter the DKIM values required for your DNS zone.
8. Leave the default value for TTL.
9. Click the Save button:
   

Add multiple DKIM

You can have multiple DKIM records on your domain/subdomain without limit, unlike DMARC or SPF, as long as your DNS host allows it.

If you use multiple third-party email providers, for example the ERP Odoo, it is necessary to add a DKIM for Odoo in addition to Infomaniak's.

Use unique DKIM selectors to avoid conflicts with existing records.