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EMAIL // MESSAGE ROUTE

Read the path behind an email.

Paste the original message headers to explain authentication, server hops, delivery delays, and sender details in plain language.

FIND YOUR HEADERS

Get the complete message history

Use the original message—not a forwarded copy. Then follow the steps for the app where you received it.

Copy the full source or message details. The abbreviated From, To, and Subject fields shown above an email are not enough for routing and authentication analysis.

macOS

Apple Mail app

  1. 1

    Open the message in Mail.

  2. 2

    From the menu bar, choose View > Message > Raw Source. If your version shows All Headers instead, select that option.

  3. 3

    Select the complete source with Command + A, then copy it with Command + C.

Apple’s header guide
Windows desktop

Outlook Mail app

New Outlook

Open the message, select More actions (…) > View > View message details, then select and copy everything in the details window.

Classic Outlook

Double-click the message, choose File > Properties, then select and copy everything in the Internet headers box.

Microsoft’s Outlook guide
Browser

Outlook Web App

  1. 1

    Open the message in Outlook on the web or Outlook.com.

  2. 2

    At the top of the message, select More actions (…).

  3. 3

    Choose View > View message details, then select and copy the complete contents.

Microsoft’s web guide
Browser

Gmail Web App

  1. 1

    Open the message in Gmail on a computer.

  2. 2

    Next to Reply, select the More (three dots) menu—not the More menu in Gmail’s main toolbar.

  3. 3

    Choose Show original, then select Copy to clipboard.

Google’s full-header guide
Headers copied?

Return to the analyzer, paste them into the field, and select Analyze headers.

Paste headers above
WHAT THIS EXPLAINS

A readable message-history report

Headers describe how a receiver handled one message. They provide valuable evidence, but they cannot prove that content or a sender is trustworthy.

01Authentication

SPF, DKIM, DMARC, alignment, and forwarding-chain results.

02Delivery route

Visible server hops, timestamps, transit time, and unusual delays.

03Sender identity

From, Reply-To, Return-Path, and authenticated sending domains.

04Message details

Decoded subject, message date, identifiers, and mailing-list controls.

NEED A HAND?

Want help understanding these results?

Analyze the headers, then copy your report into a support request. Our team can help identify what matters and recommend the next step.

Get help with results