Hmm... all that you need is to send an email from Outlook or there is more attached to the test? There is an example for this at:
https://support.smartbear.com/testcomplete/docs/scripting/sending-email-from-scripts.html?sbsearch=Sending%20emails
Also, check related info:
https://support.smartbear.com/testcomplete/docs/reference/program-objects/builtin/sendmail.html
Maybe research for another approach than getting too deep into Outlook- sent email using another solution? move emails in folders in separate step not using Outlook?