Spot mismatches
Review Reply-To, Return-Path, From, and authentication result mismatches.
Email header threat analysis
Email Header Analyzer for Spoofing and Sender Alignment
Paste raw email headers to review From, Reply-To, Return-Path, Received hops, SPF, DKIM, DMARC, and authentication clues in a structured defensive workflow.
Benefits
Preserve evidence
Keep headers for IT, provider, or incident follow-up.
Get safer response guidance
Understand whether to verify, report, or escalate.
FAQ
Should I paste passwords?
No. Remove secrets, tokens, and personal details before analysis.
Can headers prove an email is safe?
No. Headers help triage risk but do not guarantee safety.