Show subfolders in the left tree
When I add an location as an folder to the left tree of Outlook and the location in SharePoint that I added contains subfolders it would be nice to have them shown at the left navigation so it is east to drag e-mails in a sub folder.
Thank you for the inquiry.
This can be achieved through the Manage My OnePlaceMail Folders. Please refer to the following guide for further information: