Free email routing analyzer
Analyze email headers for SPF, DKIM, and DMARC.
Paste raw headers to see authentication results, Received hops, identity fields, and TLS indicators. Your headers are analyzed locally in your browser, with no account required.
Empty
Paste raw headers from a test message to see authentication and routing details.
Why this matters
Reading authentication results is part of safer outbound.
What headers reveal
Authentication-Results and Received hops show how a message traveled and how the receiving server evaluated SPF, DKIM, and DMARC.
Reported, not verified
Results are displayed as the receiving server reported them. This tool does not independently re-verify DNS or signatures.
Parsed locally
Headers are unfolded and parsed in your browser. Nothing is uploaded to OmniReach servers.
Related tools
Common questions
Email Header Analyzer FAQ
Where do I get raw headers?
In Gmail: open the message, ⋮ → Show original. In Outlook: open the message, File → Properties → Internet headers. Copy everything from Return-Path through the last Received line.
Why is Authentication-Results missing?
Some providers omit it on forwarded mail or internal routing. The analyzer will flag missing auth headers as a warning.
Does this fix deliverability?
No. It helps you read what already happened. Fix SPF, DKIM, and DMARC in DNS and your ESP, then send a test and analyze again.
Next step
Headers read. Ready to run outreach you approve first.
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