Analyze a mail header
Paste a received mail header (the complete "original message" / "raw" view) into the textarea. We render the delivery path, authentication results (SPF/DKIM/DMARC), DKIM signature, ARC chain and suspicious signals. Nothing is stored.
SPF · DKIM · DMARC
Received chain
Memory only
Headers are processed in memory only for this analysis and discarded immediately. No storage, no content logging.