Adding a DKIM record involves the following steps:
Generate the DKIM keys: You need a DKIM key pair, consisting of a private key and a public key. The private key will be used to sign your emails, while the public key will be published in your DNS records. Publish the public key: Add the public key to your DNS records as a TXT record. Configure your email server: Set up your email server to use the private key to sign outgoing emails.