Only a user with Owner level permission to a subfolder can modify (for example, rename) or grant permissions to that subfolder.If users did not create a folder, they would not be able to remove its subfolders regardless of their permissions. Only users who create a folder can delete its subfolders.Please find below the table describing Outlook permissions. Moreover, it is possible to publish your calendar to the Internet with a limited level of permissions. It may apply to specific folders within mailbox, public folders, Sharepoint site or libraries. In Exchange, you can share data with users from your organization with certain permission levels.