tell application "Microsoft Outlook"
set newMessage to make new outgoing message with properties {subject:"Hooray for automation"}
make new recipient at newMessage with properties {email address:{name:"Jim Shank", address:"jim.shank@example.com"}}
open newMessage
end tell
After hours of searching, I finally came across this fantastic example from Bobby Kansara at Microsoft. Thanks to the early adopters and beta testers.