Email Header Analyzer
Analyze pasted email headers for routing, reported authentication, and possible IP exposure.
Headers are analyzed in your browser and are not uploaded.
What this result means
Email headers record delivery and authentication metadata added by mail systems. Some fields can be forged before a trusted receiver adds its own headers.
How this check works
Headers are analyzed in your browser and are not uploaded. The analyzer unfolds continuation lines, preserves repeated Received headers, reads reported authentication results, and extracts visible IPs and timestamps.
It does not contact a sender, recipient, mail server, or DNS service; send email; inspect the message body or attachments; or cryptographically verify a signature.
To get full headers: in Gmail choose Show original; in Outlook choose View message details or message source; in other mail apps look for a source, raw message, or full headers view.