Good morning, @jrvinsky72.
Congrats on your first post here in the Community. Let me point you in the right direction to get an answer to your question about using Outlook in a RDS version of QuickBooks Desktop.
Depending on who you're using the RDS through, would determine it would require you to add on Outlook, However, sometimes it may not be available with them.
With this being said, you'll need to discuss your options with them to see what's available to you.
Feel free to come back if you have any other questions or concerns. Wishing you and your business continued success!