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WT-010 MX
EMAIL / LOCAL UTILITY

Email Header Analyzer

Inspect raw email headers for authentication results, sender domains, routing hops, IPs, and review signals.

HEADERS
LOCAL NO DATA SENT
EMAIL HEADER ANALYZERAUTH / ROUTING / REVIEW
READYPaste raw message headers to inspect authentication and routing information.

PRIVACY NOTE: Header parsing happens entirely in this browser. The pasted message headers are never sent to WhateverTools.

FIELD NOTE / 010

What can an email header tell you?

Headers can reveal how a message traveled between mail systems, which domains were used for envelope and signing identities, and what SPF, DKIM, and DMARC verdicts the receiving system recorded. Different domains are not automatically malicious, so the review notes are signals to investigate rather than a phishing verdict.