Email Header Analyzer
Paste email headers to check SPF, DKIM, DMARC, routing, and spoofing.
What this tool checks:
- SPF, DKIM, and DMARC authentication results
- Email routing hops with delivery delays
- Sender/receiver details, return path, reply-to
- IP addresses involved in delivery
- Domain mismatch and spoofing indicators
- 100% client-side. Your email data never leaves your browser