Email tool
Email Header Analyzer
Paste raw email headers to inspect routing hops, authentication results, message IDs, and sender details locally in your browser.
Analyze headers
Runs locally in your browser.
Summary
From
Not found
To
Not found
Subject
Not found
Date
Not found
Message-ID
Not found
Authentication
SPF
missingDKIM
missingDMARC
missingNot found
Received hops
Not found
Private local analysis
Header analysis runs in your browser. The tool extracts metadata from the header block you paste and does not need the message body.
Useful signals
Received lines show the route a message took. Authentication-Results often summarizes SPF, DKIM, and DMARC checks from the receiving provider.