DKIM

DKIM, or Domainkeys Identified Mail, lets you attach a signature to your email showing that it is authorized by the domain. The recipient can automatically verify this signature via a public key published by you in the DNS records of your domain name. This signature also verifies that the email and any attached files have not been altered between the time they were sent and the time they were received.

Emails sent via Gandimail servers are compatible with DKIM signatures. For those mailboxes whose domain and email service are hosted by Gandi, and if the domain in question uses LiveDNS, you can activate DKIM via your account, by following these steps :

Go to the Domain menu / Email tab

In the " Security & Settings " section, click on " Manage ".

Activate the switch under DKIM Signature.

Click on "Update".

You can also do this by manually adding the following lines to your DNS records:

gm1._domainkey 10800 IN CNAME gm1.gandimail.net.

gm2._domainkey 10800 IN CNAME gm2.gandimail.net.

gm3._domainkey 10800 IN CNAME gm3.gandimail.net.