How To Display Email Headers

Email headers can be important when tracking and tracing an email, your ISP or web host may ask for them from time to time.

Gmail

1. In Gmail, open ‘original‘ email
2. Click for the menu button (down arrow next to the Reply button)
3. Choose Show original

Mail for macOS

1. From the View menu
2. Select Message
3. Select All Headers or Long Headers

Outlook 2016 (for Mac)

1. Right-click (or ctrl-click) the message (do not actually open the message)
2. Select View Source

Outlook (for Windows)

1. Right-click on the email message
2. Select Properties
3. Click Details
4. Select Message Source

RoundCube

1. Log in to RoundCube Webmail
2. Open the email message
3. Click on the More option, then select the Show Source icon

SquirrelMail

1. Log in to SquirrelMail Webmail
2. Open the email message
3. Click the View Full Header link under the options section

Thunderbird

1. Open the email message
2. In the Menu, select View
3. Select Message Source