When clicking on "Send IM" in Outlook, it always opens Zoom Chat instead of MatterMost, because Zoom has an Outlook plug in for Outlook chat, but MatterMost does not.

The only Outlook plug in available on the MatterMost website is to forward emails. We desperately need a native MatterMost Outlook integration to make MatterMost the default chat/IM application when clicking that button in Outlook.