Email•Client-Side Processing
Email Header Analyzer
Parse raw RFC 822 email headers to inspect SPF, DKIM, DMARC, message delivery hops, and delay times.
Developer workbench
⌘ / Ctrl + Enter to runConfigure. Run. Inspect.
Runs locally. Inputs and results are not automatically saved.
107 input bytes
Output
How to Use Email Header Analyzer
01
Paste the raw headers of any received email.
02
View SPF pass/fail, DKIM validity, sender IP, and hop-by-hop latency.
03
Diagnose email spoofing or delivery delay issues.
Frequently Asked Questions
How do I find raw email headers?
In Gmail, click the three dots on any message and select 'Show original'.
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