Publishing a DKIM record is slightly more complex but equally essential. Here are the steps:
Generate a DKIM key pair using your email server or a third-party tool. Log in to your domain's DNS management console. Add a new TXT record. In the name field, enter the selector followed by "._domainkey". For example: selector1._domainkey. In the value field, paste the public key generated in step 1. Save the changes.
The email service provider will use the private key to sign outgoing emails, and recipients can verify the signature using the public key in your DNS record.