Micorosft Outlook Software is not very advanced and does not have functionality to view a complete email message and you have to do this in three steps:
1. Open Notepad or Open Office – New document
2. First get the headers (The bits with IP numbers)
- Open the exact email message in a new window by double-clicking on the message (in the message list).
It will open in a new window - Click on File and on Properties
 - Find: Internet headers or headers
 - Select the headers and copy (or press Ctrl and C)
 - and Paste (Ctrl P) on your new document
 
3. Then get the rest of the email
- Open the exact email message in a new window by double-clicking on the message (in the message list).
It will open in a new window - On the message ribbon, choose action and then other actions and then view source
 - Select the source and copy with your mouse (or press Ctrl and C)
 - and Paste (Ctrl P) on your new document
 
