What version of Outlook are you using?
When composing the message see if there is an Options button or tab. Go
there and you should see a check box for "Request a Read Receipt".
NOTE: this is not a foolproof solution. In fact some e-mail clients/servers
don't support read receipts so it's entirely possible that you'll never get
any receipt back even though the message was received and read. Further
some people have their systems configured deliberately to NOT send the
receipts.
So it's rather a tenuous solution.
Aloha,
-Ben-
Ben M. Schorr, OneNote-MVP
Roland Schorr & Tower
http://www.rolandschorr.com
Microsoft Outlook FAQ:
http://www.factplace.com/outlook.htm
**I apologize but I am unable to respond to direct requests for assistance.
Please post questions and replies here in the newsgroup. Mahalo!