A Records: Maps a domain to its corresponding IP address. MX Records: Specifies the mail servers responsible for receiving emails on behalf of the domain. SPF Records: Helps verify that emails are sent from authorized servers. DKIM: Provides a method of email authentication by allowing the receiver to check that an email was indeed sent and authorized by the owner of that domain. DMARC: Helps protect your domain from being used in phishing and email spoofing.