First, make sure you follow the steps to enable the Outlook integration here: Zoom -- Integrate with Outlook
Now, on to the setup.
- In Outlook, create a new calendar event
- In the toolbar, click the Settings gear icon for Zoom
- Click on Sign in with SSO button
- Enter rit into the text box and click Continue
- Enter your RIT username and password and click login
- Should be all set to create Zoom meetings