1.    Double click on the email in question while it is in the In box – it will fill the screen. Then click on File and Properties

1.    2. The headers should appear in a separate window, at the bottom of the screen

3.

Click inside the headers box so the mouse cursor is in there.  Then click on Ctrl-A to block all the headers.  Then right click and click on copy in the pop-up window to copy the headers