DomainKeys is a method of authenticating emails by digitally signing them. DomainKeys offers the possibility to verify the integrity of a message (it can verify that an email has not been modified "on its way").

DomainKeys works by generating a private/public key pair that are used to sign emails. The public key is placed in the DNS area as a TXT record.

The private key is stored on the server that sends the message. When sending a message, the server will sign the message using the private key (the signature will be stored in the message header). The recipient will be able to verify the message using the public key.

HostX clients can activate DomainKeys and SPF from cPanel.

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