What is Domain-based Message Authentication (DMARC)?

DMARC (Domain-based Message Authentication, Reporting, and Conformance) is an email authentication protocol that assists in preventing phishing attacks and email spoofing. DMARC enables domain owners to specify policies and rules for email authentication, such as SPF (Sender Policy Framework) and DKIM (DomainKeys Identified Mail). It also offers means for obtaining feedback and notifications on email authentication failures. Organizations can improve the reliability of their email communications and safeguard their domains from unlawful use by using DMARC.