What is DMARC? DMARC (Domain-Based Messaging Authentication Reporting & Conformance) is an email authentication, policy, and reporting protocol.
Why should I enable DMARC? When used together with SPF & DKIM it protects domains from email spoofing, spamming and phishing. It will also help delivery of emails to Gmail who have enable strict DMARC rules and will mark as spam or reject emails if they don’t pass their set policy.