Developer

Email Header Analyzer

Paste raw email headers to inspect routing hops, authentication results and important message fields without uploading them.

Review authentication clues and routing hops before sharing a suspicious message with someone else.

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Inspect email routing and authentication headers locally.

When to use this tool

Use it when troubleshooting delivery or reviewing a suspicious email and you need a readable summary of its raw headers.

  1. Check SPF, DKIM and DMARC result fields.
  2. Trace Received hops through mail servers.
  3. Spot missing identifiers or date fields before escalating a delivery issue.
Related tools

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FAQ

Questions

Questions

Are my email headers uploaded?

No. Parsing happens locally in your browser.

Can this prove an email is safe?

No. Header results are useful clues, but they do not prove that links, attachments or senders are trustworthy.

Where do I find raw headers?

Look for Show original, View source or View message details in your email app.