Free network tool

Trace Email Source

Extract public relay addresses from raw email headers and turn them into a readable delivery path.

Private by design Lookups run on our server and repeated results are cached to reduce CPU use.
1

Enter your lookup

Sensitive message content is not required. Paste only the technical header section.

2

Delivery path

Your result

Ready

Results will appear here

Run the lookup above to see a visual summary, explanations, copy and sharing options. Raw JSON remains available under Technical data.

01

How this tool works

The check uses our local IP intelligence, server-side DNS resolver, cached standards-based registration data, or first-party observations. It does not expose your browser directly to a list of outside providers.

02

Understand the limits

IP location is approximate, DNS changes can remain cached, and privacy or reputation classifications are probabilistic. An IP address is not proof of a person’s identity or exact home address.