Email header inspector

Inspect the routing data inside an EML.

Open the saved message directly on the Headers tab to review Received lines, authentication results, message IDs, and MIME metadata.

Workspace status

Ready · Local browser memory

Drop an email to inspect its headers

Open it once. Reader, safety, headers, route, redaction, and export reuse the same in-memory source.

.EML
.MSG
.EMLX
winmail.dat
Processed locally. Files and filenames stay on this device.
Workflow

From source file to finished result

Runs locally
  1. Step 1

    Drop the EML

  2. Step 2

    Review parsed headers

  3. Step 3

    Open Source for the original message

What this workspace preserves

Header values remain on your device

Folded headers are decoded by the MIME parser

Raw source is never sent to analytics

Questions about this workflow

Can headers prove who sent an email?

Headers provide routing and authentication evidence, but they should be interpreted together and can contain spoofed fields.

Does this tool make a security verdict?

No. It exposes the data without making an unsupported threat claim.