DKIM provides a method for validating a domain name identity that is associated with a message through cryptographic authentication. It protects your mailboxes from sender forgery and helps with avoiding your messages being filtered as spam. It requires server-side signing of the messages and a DNS record.
To enable the DKIM protection, you need to click on the button Enable in the Mail protection subsection:
When you enable the DKIM protection, our email server will generate a private key and start signing your messages with it. The messages are signed by adding a header to them.
The public key used by the remote servers to verify the messages needs to be stored in a DNS record. When enabling the DKIM protection, the DNS record will be automatically created on our DNS servers. The DNS record will look like this (the actual key will be different for your account):
|If you are using third party DNS servers, you need to replicate the DNS record on them.|
You can only enable or disable the DKIM protection for your whole hosting account. You can't do that per domain name.
Disabling the DKIM protection, by clicking the button Disable under it, would remove all automatically generated DKIM records for your domains. If you have disabled your DNS service, you will need to temporarily enable it to be able to manage the DKIM protection.