This email protocol provides a mechanism for email senders and receivers to determine whether or not a given message is legitimately from the sender, and what to do if it isn't. It relies on the results of checking the messages against the policies defined in the Sender Policy Framework and DomainKeys Identified Mail records.
Security Policy Framework (SPF)
Protected Domain Marks Recording (PDMR)
Domain-based Message Authentication, Reporting and Conformance (DMARC)
Domain-based Message Authentication, Reporting and Conformance (DMARC) is designed to give email domain owners the ability to protect their domain from unauthorized messages, such as email spoofing. The protocol relies on the results of checking the messages against the policies defined in the Sender Policy Framework (SPF) and DomainKeys Identified Mail (DKIM) records. If the validation fails, the email can be quarantined or rejected based on the policies set by the domain owner. It's crucial to understand that DMARC doesn't directly prevent phishing but makes it harder for attackers to spoof email addresses from the protected domain, thus indirectly guarding against phishing attempts that rely on domain spoofing.
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