How to get email header in outlook and gmail

How to get email header in Outlook:

In Outlook 2016, 2013, or 2010
In an open email message, click the File tab.

On the Info tab, click Properties.

Header information appears in the Internet headers box.

 

In Outlook 2007
Open an email message.

On the Message tab, in the Options group, click the Dialog Box Launcher Icon image .

In the Message Options dialog box, the headers appear in the Internet headers box.

 

How to get email header from Gmail

  1. Log in to Gmail
  2. Open the message you’d like to view headers for.
  3. Click the down arrow next to Reply, at the top of the message pane.
  4. Select Show Original.
  5. A summary of the headers will appear in a new window. To get the full headers, click Download Original.

Note: If you use Gmail with a work or school account and have S/MIME enabled, you can click Download S/MIME Original or Download Decrypted.