📖 Glossary
What is DMARC (Domain-based Message Authentication, Reporting, and Conformance)?
An email authentication protocol that uses SPF and DKIM to provide instructions to the receiving mail server on how to handle emails that fail authentication.
Detailed Explanation
DMARC is the policy layer built on top of SPF and DKIM. It tells receiving servers what to do if an email claims to be from your domain but fails SPF or DKIM checks (e.g., "none" (monitor), "quarantine" (send to spam), or "reject"). DMARC also provides reporting reports back to the domain owner, offering visibility into who is sending email on their behalf, which helps stop phishing and spoofing attacks.
Start Verifying Emails Today
Get 98%+ accuracy with AI-powered verification. 100 free credits, no credit card required.
✓ 100 Free Credits✓ Improve Deliverability✓ Detect Catch-alls