Email Header Analyzer
Paste the full headers (or the whole raw message) and we’ll trace the delivery path, show SPF/DKIM/DMARC results, the originating IP, and the important headers.
Want a full score? Run a complete spam test — it analyzes headers and sends a real message to score deliverability 0–10.
Frequently asked questions
How do I get my email headers?
In Gmail open a message → ⋮ → "Show original". In Outlook open the message → File → Properties → Internet headers.
What does the Received chain show?
Each hop the message passed through, in order, with the relay delays between them — useful for spotting slow hops or forged relays.
Is my pasted data stored?
No — header analysis runs on the fly and isn’t saved.