Also, I find that there is no way to collapse threads on outlook like apple mail. Also many other threading features are not available on outlook like most recent message on top and complete threads and so on. And, it has been years people have been asking for these from Microsoft and they are silent.Outlook is a good replacement but limited in some ways. For example Outlook cannot sync contacts that are in subfolders.
Sorry not complaining against outlook, just saying that it is missing some crucial features.