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Email Header Analyzer

Decode your email headers to understand authentication, routing, and potential delivery issues. Get instant insights into SPF, DKIM, DMARC, and more.

Paste Email Headers

How to Get Headers

Gmail:Open email → More (⋯) → Show original
Outlook:Open email → File → Properties → Internet headers
Apple Mail:View → Message → All Headers
Yahoo Mail:More (⋯) → View raw message

What We Analyze

  • ✓SPF, DKIM, DMARC, and ARC results
  • ✓Sending IP and platform detection
  • ✓Message route with timestamps and delays
  • ✓List-Unsubscribe and one-click compliance
  • ✓TLS encryption across hops
  • ✓Spam filter scores and flags

Go Deeper

Check the sending domain's live DNS records or generate a DMARC record with our other free tools.

Check Domain Authentication →Generate DMARC Record →

Improve Your Email Deliverability

Understanding your headers is the first step. Let our experts help you fix authentication issues and boost inbox placement.

Schedule Free Consultation