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Free · Emailed report · Instant

Paste any email's raw headers. We trace every hop, verify SPF / DKIM / DMARC, and flag spoofing patterns in seconds.

Headers are processed in memory. We email your full report to the address above and keep a copy so a specialist can follow up — no spam, ever.

Also free: Deliverability troubleshooter (SPF · DKIM · DMARC) · Talk to a specialist

Frequently asked questions

What is an email header analyzer?

It parses the raw headers of an email and shows the hop-by-hop delivery path, SPF, DKIM, and DMARC authentication results, timestamps, and any spoofing flags in a readable layout.

Is the email header analyzer free?

Yes, it is free. When you paste the raw headers, they are processed securely on our server to generate your report. We ask for an email address so we can send you the results — read how we handle your data in our privacy policy.

How do I get the raw headers of an email?

In Gmail, open the message, click the three-dot menu, and choose "Show original". In Outlook, open the message and go to File then Properties to find the internet headers, then paste them into the analyzer.

Can it tell me whether SPF, DKIM, and DMARC passed?

Yes. The analyzer reads the Authentication-Results header and shows pass or fail for SPF, DKIM, and DMARC, plus alignment, so you can pinpoint exactly where authentication broke.