Domain-based Message Authentication, Reporting & Conformance (DMARC)

DMARC (Domain-based Message Authentication, Reporting & Conformance) is an email security protocol that helps protect organizations from email fraud and phishing. It allows email domain owners to specify how recipients should handle messages that fail authentication checks—such as marking them as spam or rejecting them entirely. DMARC also provides reporting features, enabling domain owners to monitor how their emails are being used or exploited. In essence, it ensures that emails claiming to be from a trusted source are legitimate, boosting email security, trust, and integrity for both senders and recipients.