In the EWS Managed API, the folder properties are all derived from the base Folder class. For a complete list of the EWS DistinguishedFolderId values, see DistinguishedFolderId. Each message store contains only one root folder.Ĭontains the Inbox and other user folders.Ĭontains search folders that are visible in Outlook.įor a complete list of the EWS Managed API WellKnownFolderName property values, see the WellKnownFolderName enumeration. This folder has no parent, and you cannot move, copy, rename, or delete it. Primary well-known and distinguished folders Friendly nameĮWS Managed API WellKnownFolderName valuesĬontains the root folder of a mailbox, also known as the Non-IPM Subtree. It is important for you to be familiar with the following well-known or distinguished folders because they are the root system, user, and search folders, and are applicable to most implementations. Other "generic" (non-special) folders do not have the same restrictions. Some of these folders have restrictions on the folder name, where they are located in the folder structure, and whether they can be deleted. These equate to well-known folders in the EWS Managed API, or distinguished folders in EWS. Of the folders in a mailbox, some are special folders. The following figure shows the folder structure for a user and indicates which folders are for the user's items and which are system folders.įigure 2. This includes the IPM Subtree, known as the Top of Information Store in EWS, where most users interact with their mailbox, as well as system folders that most users never see, which are in the Non-IPM Subtree or Root in EWS. To ensure that Search folders are available in Outlook, create them in the Finder folder.įolders provide a mailbox structure. The items that meet the search criteria are not actually contained in the search folder instead, they are located elsewhere in the mailbox. This folder class or folder type supports the use of calendar views to return appointments and meetings based on a start date and an end date by using the EWS Managed API Folder.FindItem method and the CalendarView class, or the EWS FindItem operation and the CalendarView element.Ĭontents are determined by a restriction or filter. These are the only folders that support automatic interaction with meeting requests and responses. When a user responds to a meeting request, the appointment is added to the EWS Managed API WellKnownFolderName.Calendar or the EWS DistinguishedFolderId.CalendarFolder only. This is the generic folder class or type for the following EWS Managed API WellKnownFolderName folders and EWS DistinguishedFolderId folders: EWS Managed API folder classes and EWS folder types EWS Managed API class Outlook only displays calendar items such as appointments and meetings in the Calendar folder, even if another type of item exists in the folder. You can move other types of items into the Calendar folder after you create them, but Outlook won't display them. For example, Exchange allows you to create appointments in the Calendar folder. One other difference is in how the client displays information in a folder. The primary difference between each of the folder classes and folder types is that you can only create a certain type of item in each type of folder. EWS Managed API folder classes and EWS folder types The following figure shows the EWS Managed API classes and EWS types.įigure 1. In this article, we'll discuss the types of folders and items that are available and the differences between them.įolders all derive from the same base class or base type, the Folder class in the EWS Managed API, or the Folder type in EWS. Each item type has a different set of properties or schema to define it. The main difference between them is the type of item they contain. Exchange includes different types of folders, but the folder types are similar to each other. Folders can contain mailbox items, such as email messages, contacts, appointments, meetings, and tasks, or they can contain other folders. Learn about folders and mailbox items and how your EWS Managed API or EWS client represents them.įolders are the organizing element of an Exchange mailbox.
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