To create a new folder underneath a folder in the Mail app for Windows 10: See below for creating sub-folders.Ĭreate a Sub-Folder to Set up a Folder Hierarchy Tip: You can use all these names for sub-folders in a hierarchy. Note: While you can be very creative naming folders, a few names are reserved you cannot call a custom folder on the top level Inbox, for example, Deleted or Archive, for example. Tip: If you do not see Folders in the Windows Mail sidebar, click Expand to show the full sidebar first.
To create a new custom folder in Windows 10 Mail:
