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DMARC Generator

Generate DMARC DNS records to protect your email domain from spoofing and phishing. Visual builder with policy explanations and best practices.

Quick Start Templates

Start with a preset template based on your experience level and requirements. You can customize any template after selection.

📊

Monitoring

Beginner

For organizations just starting with DMARC

Features:
  • ✓No email filtering
  • ✓Aggregate reports only
  • ✓Safe for immediate deployment
  • ✓Learn about your email sources
⚠️

Quarantine

Intermediate

For organizations with established SPF/DKIM

Features:
  • ✓Mark unauthenticated email as spam
  • ✓Aggregate and forensic reports
  • ✓Subdomain protection
  • ✓Relaxed alignment
🛡️

Strict Rejection

Advanced

For maximum brand protection

Features:
  • ✓Block all unauthenticated email
  • ✓Strict alignment mode
  • ✓Subdomain rejection policy
  • ✓Comprehensive reporting
🔄

Gradual Rollout

Intermediate

For careful enforcement testing

Features:
  • ✓10% enforcement rate
  • ✓Test before full deployment
  • ✓Minimize disruption risk
  • ✓Easy to adjust percentage

💡 Recommendation: Start with the Monitoring template if you're new to DMARC. It's safe to deploy immediately and won't affect email delivery while you learn about your email sources.

Or start from scratch with the wizard:

Need Help with Email Security?

Our security team can help you implement DMARC, SPF, DKIM, and protect your domain from email spoofing and phishing attacks.

Get Security AssessmentView Email Security Tools

Understanding DMARC Implementation

DMARC is the final layer of email authentication that protects your domain from being used in phishing attacks.

DMARC Policies

  • • none: Monitor mode - collect reports only
  • • quarantine: Send suspicious emails to spam
  • • reject: Block unauthenticated emails entirely
  • • Start with "none" and gradually increase strictness
  • • Use subdomain policy (sp) for different policies

Implementation Steps

  • 1. Set up SPF record for your domain
  • 2. Configure DKIM signing for outbound mail
  • 3. Add DMARC record with p=none for monitoring
  • 4. Review aggregate reports for 1-2 weeks
  • 5. Gradually increase to quarantine, then reject

Frequently Asked Questions

Common questions about the DMARC Generator

DMARC (Domain-based Message Authentication, Reporting, and Conformance) is an email authentication protocol that helps prevent email spoofing and phishing. It builds on SPF and DKIM to give domain owners control over how receivers should handle unauthenticated emails from their domain.

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⚠️ Security Notice

This tool is provided for educational and authorized security testing purposes only. Always ensure you have proper authorization before testing any systems or networks you do not own. Unauthorized access or security testing may be illegal in your jurisdiction. All processing happens client-side in your browser - no data is sent to our servers.