I wanted to add my thoughts to this thread. It is incredibly frustrating to not be able to utilize the email tracking feature with new Outlook for Mac. As previously noted, the legacy outlook does not have the integrations and support we need, so to have to use it just to track emails doesn’t make sense. I sold my leadership team on Hubspot and one of the key features I highlighted was email tracking. Now that we cannot use it effectively, there is a lot of frustration on all sides. I hope you can fix this quickly.