Tool
Email Header Analyzer
Paste raw email headers and instantly decode them — see the delivery path, authentication results, and all key metadata.
How to get email headers
Gmail: Open email → three-dot menu → "Show original" → copy all.
Outlook: Open email → File → Properties → Internet headers section.
Apple Mail: View → Message → All Headers.
Yahoo Mail: Open email → three-dot menu → "View Raw Message".
