View message headers in Outlook 2007

It took me some time to find out (searching on Google would’ve been much faster!), but here’s how to view message headers of an email in Outlook 2007.

1. Open a message (double click)
2. In the Ribbon, locate Options (Follow-Up and Mark As Unread are buttons). In the Options area, click the small arrow in the right bottom.
   This is called the Dialog Box Launcher
   
3. The Message Options dialog box pops up. The headers appear in the Internet headers box