DMARC Record
Analyzer & Checker
Analyze your domain's DMARC record for free. Check policy settings, alignment configuration, and protection against email spoofing.
Policy Analysis
Check none, quarantine, or reject enforcement
Spoofability Check
Assess domain spoofing risk
Alignment Review
Verify SPF and DKIM alignment settings
What is DMARC?
Domain-based Message Authentication, Reporting & Conformance
DMARC is an email authentication protocol that builds on SPF and DKIM to give domain owners control over what happens when emails fail authentication. It tells receiving servers whether to accept, quarantine, or reject unauthenticated messages, and provides reporting so domain owners can monitor abuse.
DMARC Policies Explained
Monitor only. No enforcement on failing emails. Use this when first implementing DMARC to collect reports.
Failing emails are sent to spam/junk. A good intermediate step before full enforcement.
Failing emails are blocked entirely. The strongest protection against email spoofing.
DMARC Alignment
DMARC alignment ensures that the domain in the email's "From" header matches the domain authenticated by SPF or DKIM. There are two modes:
- Relaxed (default): Organizational domain match is sufficient (e.g., mail.example.com matches example.com)
- Strict: Exact domain match required. More secure but may break legitimate email from subdomains