Unsubscribe & headers checker
Runs in your browserPaste raw email headers to check one-click unsubscribe support and authentication (SPF/DKIM/DMARC).
This tool runs entirely in your browser. What you paste is never sent to our server.
Paste raw email headers to check one-click unsubscribe support and authentication (SPF/DKIM/DMARC).
This tool runs entirely in your browser. What you paste is never sent to our server.