Viewing Message Headers in Outlook 2003

Outlook doesn't have a View, Source option like you'll find in Outlook Express. It has View, Options which shows you the Internet header in a small text box. But it only includes the Internet header, not the full message source.

Using Outlook 2003 you can view the header and source together, if you edit a registry key. This works on mail obtained from Internet mail transports, not Exchange server mailboxes. However, if you access the mailbox using an Internet transport, you'll see the full source.

How to edit the registry key:

1. Open the registry editor. (Start Menu -> Run -> type in "regedit")
   
   
2. Navigate to: HKEY_CURRENT_USER\Software\Microsoft\Office\11.0\Outlook\Options\Mail
   
   
3. Right click on the right pane and choose New -> DWORD Value.
   
   
4. Type SaveAllMIMENotJustHeaders into Name.
   
   
5. Right click the new item you created. Type 1 into the value box.