HOW TO: View e-mail message HEADERS
Posted by on 11 October 2017 01:20 PM

What is Header? Refer HERE for more information.


Horde - Webmail

  1. Log into Horde Webmail.
  2. Open the email message.
  3. Click the "Message Source" link in the text menu at the top of the message.
  4. A new window, with the full message and headers, will open.


Outlook 2010

  1. Open Outlook 2010.
  2. Select the email message for which you'd like to view the headers.
  3. Click on File, see image below.
  4. Click on Properties as in image below.
  5. The new window contains the headers. See image below.


Outlook 2007

  1. Open Outlook 2007.
  2. Open the email message.
  3. Under the Message tab, in the Options group, click on the Dialog Box Launcher icon.
  4. In the Message Options dialog box, the headers appear in the Internet headers box.

Outlook 2000, 2002 and 2003

  1. Open Outlook.
  2. Double-click to open the email message in a new window.
  3. Select View > Optionsfrom the message's menu.

  4. All header lines appear under Internet Headers at the bottom of the dialog box.


Outlook Express

  1. Open Outlook Express.
  2. Right click on the message and select Properties.
  3. Choose the Details tab and select the Message Source Button.


Mozilla Thunderbird

  1. Open Thunderbird.
  2. Double-click to open the email message.
  3. From the menu bar, select View > Headers then choose All.
  4. The headers should be immediately displayed.



  1. Log into Gmail.
  2. Open the message.
  3. Click the down arrow next to Reply, at the top-right of the message pane.
  4. Select Show original.
  5. The full headers will appear in a new window.


  1. Log into Yahoo webmail.
  2. Open the message.
  3. Click Full Headers at the top of your message.
  4. The full headers will appear above the message text.

MSN Hotmail

  1. Log into MSN Hotmail.
  2. Click into your Inbox.
  3. Hover (do NOT click) over the email for which you want to see the headers.
  4. Right click to get a new menu of options.
  5. Choose the "View message source" option.
  6. Now, the full headers for the email you were hovering on will be displayed.

Windows Live Hotmail

  1. Log into Windows Live Hotmail.
  2. Click on the desired message in the list with the right mouse button.
  3. Select View source from the menu.
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