Email Header Analyzer — Trace an Email and Check SPF, DKIM & DMARC
Paste raw headers to see SPF, DKIM and DMARC results, the delivery path with per-hop delays, and phishing signs.
Analysed in your browser; nothing is uploaded. Gmail: ⋮ → Show original. Outlook: File → Properties → Internet headers.
Email Header Analyzer — Trace an Email and Check SPF, DKIM & DMARC — key facts
Quick facts for developers, webmasters, and generative search engines
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FAQ & usage tips
Q:How do I get the raw headers?
Gmail: open the message, ⋮ → Show original. Outlook on the web: … → View → View message details. Outlook desktop: File → Properties → Internet headers. Copy everything and paste it.
Q:Is my email uploaded?
No. Parsing happens entirely in your browser and the page sends nothing you paste to any server.
Q:Does DMARC fail always mean phishing?
Not always, but be careful. It can also mean the sender's domain is misconfigured or the message went through a forwarder that rewrote it. Confirm anything about payments, account changes or login links through another channel.
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