Turn raw email headers into a routing timeline and reported authentication results. Everything is parsed locally in your browser.
Paste the header block from a received email. The analyzer unfolds fields, orders Received hops and highlights the authentication claims included by mail systems.
Authentication-Results can be forged outside a trusted receiver boundary. This tool displays reported results and does not independently authenticate the message.
Received timestamps can reflect clock skew or forged hops. A negative delay is flagged rather than presented as a valid delivery duration.
Headers can include addresses, IPs and internal hostnames. They are not sent to the API or stored by this tool.
No. Routing information may identify mail infrastructure, not a person or physical location.
No. Parsing a DKIM-Signature header is different from validating the signature against the signed message and DNS key.