Mail Header Analyzer

Email Header Inspector

Paste raw email headers to trace the delivery path, verify SPF/DKIM/DMARC authentication, and surface spoofing indicators. Fully client-side — no data leaves your browser.

Paste full headers including Received: chains · Ctrl+V anywhere on page

Parse error

Could not parse headers.

Pivot WHOIS ↗ DNS ↗ Mail Headers

Paste headers above to begin analysis

Authentication

Delivery Chain

#	From	By	Timestamp	Delay

Envelope

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