More than a new feature, this is sort of a trouble I am facing. The Outlook app uses a lot of internal storage which is very very huge. It would be better if the app can clear the internal storage internally in regular intervals (like once in a week). The storage used by the emails opened a week ago or so can be cleared automatically. Currently I will have to delete the app and reinstall.

If this feature is already in place, then I would say Outlook has a very poor data storage management.