Email Header Analyzer
Paste raw headers to reconstruct the delivery path hop by hop, measure delays, read SPF / DKIM / DMARC results, find the originating IP and spot From / Reply-To / Return-Path mismatches used in invoice fraud.
Online lookup via our server
Your IP is not exposed to the target
How to get the headers
Gmail: open the message → ⋮ → Show original → Copy to clipboard.
Outlook (web): open the message → … → View → View message source.
Outlook (desktop): File → Properties → Internet headers.
Apple Mail: View → Message → All Headers or Raw Source. You can also drop a .eml file.
Results are automated estimates for investigative reference only and are not evidence. Always verify independently. Read the disclaimer.