Outlook provides a robust set of pre-defined roles to select when sharing folders with other users.
|Permission Level||Available Actions|
|Owner||Create, read, modify, and delete all items and files and create subfolders. The folder owner may change permission levels for other users and groups.|
|Publishing Editor||Create, read, modify, and delete all items and files and create subfolders.|
|Editor||Create, read, modify, and delete all items and files. Full calendar editing.|
|Publishing Author||Create and read items and files, create subfolders, and modify and delete items and files this user or group creates.|
|Author||Create and read items and files and modify and delete items and files this user or group creates. Create and edit your own meetings on calendars.|
|Contributor||Create items and files only. The contents of the folder do not appear. Create meetings on calendars.|
|Reviewer||Read items and files only. See all details on non-private meetings on calendars.|
|Custom||Perform activities exclusively defined by the folder owner(s).|
|LimitedDetails||Only for calendars. Shows free/busy and subject line and/or organizer.|
|AvailabilityOnly||Only for calendars. Only shows whether the time is free or busy, not what it is or who organized it.|
|None||No permission. The folder cannot be opened by this user or group.|
By default, all mailboxes have Anonymous set to
None and Default set to
AvailabilityOnly, which is a permission type only applicable to calendars.