Microsoft Outlook · Schema

MailFolder

A mail folder in a user's mailbox, such as Inbox and Drafts. Mail folders can contain messages, other Outlook items, and child mail folders.

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Name	Type	Description
id	string	The unique identifier of the mail folder. Read-only.
displayName	string	The mail folder's display name.
parentFolderId	string	The unique identifier for the parent mail folder.
childFolderCount	integer	The number of immediate child mail folders in the current folder.
unreadItemCount	integer	The number of items marked as unread in the folder.
totalItemCount	integer	The number of items in the folder.
isHidden	boolean	Indicates whether the mail folder is hidden. Can only be set when creating the folder.