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How to view email headers
How to view email headers
Email headers will tell the full transit story of a particular email. This can often help diagnose possible delivery or alignment issues.
Nate avatar
Written by Nate
Updated over a week ago

Gmail Headers

  1. Open mail.google.com

  2. Open the email you wish to view the headers of.

  3. On the top right of the email next to reply, click the three dots (more) → Show original.


Outlook Web

  1. Open outlook.live.com

  2. Open the email you wish to view the headers of.

  3. On the top right of the email, click the three dotsView View message source.


Outlook App

  1. Open Outlook.

  2. Open the email you wish to view the headers of.

  3. Click FileProperties.

  4. Headers will display in the "Internet headers" box.


Apple Mail

  1. Open Apple Mail.

  2. Open the email you wish to view the headers of.

  3. Click ViewMessageAll Headers.

  4. Headers will display in the window below your inbox.


Yahoo Mail

  1. Click on an email to open it.

  2. Click the More icon (...).

  3. Select View Raw Message.



Proton Mail

  • Web App

    1. Log in to your account at mail.proton.me and open an email.

    2. Go to More (3-dot icon) →View headers.

  • Android / iOS

    1. Log in to the Proton Mail app and open an email.

    2. Tap the 3-dot menu icon at the bottom right of the screen →View headers.


Zoho Mail

  1. Open the email whose headers you would like to view.

  2. Click the More Actions drop-down on the right corner of the email.

  3. Choose the Show Original option.


Don't see your email client listed? Odds are that a quick search of your mail client's documentation will show you how to view email headers. If you're still having issues, give us a shout and we'll help you find them!

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