Version 1.0 of the Outlook REST API is being deprecated.Beginning November 1, 2018, apps will no longer be able to use Basic Authentication with the v1.0 REST endpoint (https://outlook.office.com/api/v1.0).You can use the following well-known folder names instead of the ID to specify the corresponding folder: .Get folders | Synchronize folders | Create folders | Update folders | Delete folders | Move or copy folders See also: REST API message resource | REST API Folder resource Like other Outlook REST API, for every request to the Mail API, you should include a valid access token.Getting an access token requires you to have registered and identified your app, and obtained the appropriate authorization.
Message synchronization is a per-folder operation, for example, you can synchronize all of the messages in your Inbox.
A few API subsets, such as Focused Inbox API, can be performed on the signed-in user, or a user specified by a user ID, given the appropriate permissions.
See Use the Outlook REST API for more information common to all subsets of the Outlook REST API.
By November 1, 2019, the v1.0 REST endpoint will be fully decommissioned, and the v1.0 documentation will be removed shortly afterwards.
Start migrating your app to use Outlook REST API in v1.0 of Microsoft Graph. The Outlook Mail API lets you read, create, and send messages and attachments, view and respond to event messages, and manage folders that are secured by Azure Active Directory in Office 365.