Header Diagnostics

Email Header Analyzer

Deconstruct raw email headers, inspect authentication verdicts and trace server hops.

Supported formats: Gmail ("Show Original"), Outlook ("View Message Source"), or Apple Mail ("Raw Source"). 0 characters

How It Works in 3 Simple Steps

01

Copy Original Email

Open email in Gmail/Outlook and click "Show original" or "View message details".

02

Paste Headers

Paste the raw header block into our analyzer.

03

Instant Breakdown

View hop timeline, spam scores, and authentication pass/fail verdicts.

Pro Tips for Maximum Performance
  • Examine the "Received: from" headers to pinpoint which server introduced transmission lag.

Frequently Asked Questions

Click the 3 dots next to reply, select "Show original", then click "Copy to clipboard".

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