Jul 16, 2021
How do DKIM records work?
DKIM is based on a cryptographic key pair. DKIM uses one key to sign outgoing mail, and another to verify the signature when incoming mail is received. This key pair can be generated by anyone who has access to a domain's DNS records, and creating a DKIM TXT record associated with one or more of your domain names. You can now sign email messages using DKIM. It uses two actions to verify your messages. The first action takes place on a server sending DKIM signed emails, while the second happens on a recipient server checking DKIM signatures on incoming messages.