Text / FREE ONLINE TOOL
Email Header Analyzer
Analyze email headers online or open an EML file. Trace message routing and inspect reported SPF, DKIM, and DMARC authentication results locally.
QUICK GUIDE
How to use this tool
Paste raw headers or open an .eml file. Results describe supplied headers; they do not independently verify sender authentication.
Your input is processed locally. Use Copy or Download to keep your result.
Keep your workflow moving
Need another step? Try a related tool.