What is DMARC?

DMARC (Domain-based Message Authentication, Reporting, and Conformance) is an email authentication protocol designed to protect domains from unauthorized use, such as phishing or spoofing.

It combines two existing authentication methods — SPF (Sender Policy Framework) and DKIM (DomainKeys Identified Mail) — and allows domain administrators to publish policies instructing receiving servers how to handle emails that fail these validations.

With DMARC, organizations can:

• • Prevent malicious actors from impersonating their identity.
• • Receive reports on email activity associated with their domain.
• • Improve domain reputation and email security.

Properly configuring DMARC helps protect your users, customers, and brand from email-based attacks.