Email Header Analyzer

Parse authentication results, routing hops, and delivery delays from raw email headers

Paste Email Headers

What this tool checks

  • SPF, DKIM, DMARC pass/fail results
  • Routing hops and server names
  • Delivery delays between each hop
  • Message metadata (from, to, subject, date)

How to get headers

Gmail: Open email, click ... menu, select "Show original"
Outlook: Open email, click ... menu, select "View message source"
Apple Mail: View menu, then "Message" and "All Headers"

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