Network Security
π§ Email Header Analyzer
Paste raw email headers to trace the full Received chain, verify DKIM/SPF/DMARC authentication results, detect delays, and identify suspicious routing. 100% client-side.
π Header Field Reference
| Received | Each hop the message traversed β from sending MTA to receiving MTA |
| Authentication-Results | SPF, DKIM, and DMARC verification outcomes recorded by the receiving MTA |
| DKIM-Signature | Cryptographic signature over selected headers and body by the signing domain |
| ARC-* | Authenticated Received Chain β preserves auth results across forwarding hops |
| X-Spam-Status | Spam score and rule hits from spam filters (SpamAssassin, Rspamd, etc.) |
| X-Mailer / User-Agent | Email client or library used to compose/send the message |
| X-Originating-IP | True originating IP added by some providers (Outlook, Yahoo) |
| Reply-To | Address replies are directed to β mismatch with From is a phishing indicator |