DKIM key authentication

DKIM key authentication
This authentication is carried out by adding a DKIM key to your DNS zone. Using the DKIM interface, you will generate a private key and a public key for your domain. You will then need to update the DNS records. The interface will then display the record to be inserted.

Go to DKIM settings
Log in to the admin console using your login at: https://www.security-mail.net/
1. Navigate to the =>Configuration tab
2. Domain parameter
3. DKIM

Key generation

Before validating DKIM activation, retrieve the generated content and configure it in the registrar of the domain concerned.
1. Copy the key found in "DKIM" and put it in your domain's DNS zone at your registrar.
For example below. (Please do not use this key as an example)

sec-sig-email._domainkey 3600 IN TXT "v=DKIM1; k=rsa; s=email; p=MIGfMA0GCSqGSIb3DQEBAQzerffdssssDDFGEDCBiQKBgQDyJv9xz/zrjdyDgnE zicj47kufzqwN2/JYvLwXpwEZdJ/FDHMuXlOYrenYpyJE7zufBzzktFLO3BiPz53vjhGS V3VldMxLpGnQE+A+reSAIJBIo7Bovdyz1+7TPgIOqQ+HF04lMQqQo8ge+bM+jJOAu C9gvpnzzdEv4SoRMTaEtQIDAQAB"

Note: Key generation is forced to 2048 bit

How do I add a DKIM record at OVH? 

Here is an example of the DNS parameter access procedure for the OVH registrar.
This is an example, please check the operator documentation.

1. Using your favourite web browser, go to your OVH manager, log in with the username and password provided by OVH.
2. Select the domain in the left-hand zone (1) then click on the "DNS Zone" tab (2). Then click on "Add an entry" (3).
3: In the screen that appears, choose the "TXT" type and not DKIM.
4. Enter the following information:
In sub-domain: sec-sig-email._domainkey
5.  Value: Copy / paste the DKIM key generated by Secuserve (example below)

"v=DKIM1; k=rsa; s=email; p=MIGfMA0GCSqGSIb3DQEBAQzerffdssssDDFGEDCBiQKBgQDyJv9xz/zrjdyDgnE zicj47kufzqwN2/JYvLwXpwEZdJ/FDHMuXlOYrenYpyJE7zufBzzktFLO3BiPz53vjhGS V3VldMxLpGnQE+A+reSAIJBIo7Bovdyz1+7TPgIOqQ+HF04lMQqQo8ge+bM+jJOAu C9gvpnzzdEv4SoRMTaEtQIDAQAB"

Note: Remember to remove the dots ("), as some registrars do not take the value entered into account.
Illustration:
5. Validate and confirm.
6. Activate DKIM in your e-securemail interface.
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