This free DMARC checker lets you instantly look up and validate the DMARC record for any domain. DMARC (Domain-based Message Authentication, Reporting & Conformance) is a DNS-based email authentication protocol that protects your domain from spoofing and phishing attacks by telling receiving mail servers how to handle unauthenticated messages.
Enter any domain above to verify its DMARC policy, alignment settings, and reporting configuration. The checker validates your record syntax, inspects your policy enforcement level, and identifies common misconfigurations that could leave your domain vulnerable or hurt email deliverability. Properly configured DMARC, alongside SPF and DKIM, is essential for meeting the sender requirements of major providers like Google and Microsoft.
