Free Tool

Email Header Analyzer

Name: Copper Bay Tech
Address: Petaluma, CA, US
Telephone: +17072396725

Paste raw email headers to check SPF, DKIM, DMARC authentication, trace the delivery path, and spot spoofing indicators.

All analysis happens in your browser. Headers are never sent to our servers.

Paste Raw Email Headers

In Gmail: open email → three-dot menu → “Show original”. In Outlook: File → Properties → Internet headers.