Microsoft は幅広いサービスに対応可能な Microsoft Graph への移行を進めて おり、2022 年 11 月 30 日に Outlook REST API を廃止すると 2 年前に発表 していた。

Just another question about the Microsoft Graph REST API.... I'm trying to use the API to retrieve messages in my Outlook inbox. It's working for the most part, but filtering on the from address ...

Microsoft Corp will discontinue its Graph command-line interface tool next year, citing declining usage and overlap with existing developer tools as the company consolidates its software development ...

Some of the features coming to New Unified Contacts include: Consistent Contact List: Users can view and manage a single, synchronized contact list across Teams, Outlook, and Microsoft Graph APIs.

Graph offers an application programming interface (API) that developers use to connect to a wide range of data — email, calendar events, files, etc. — across Microsoft cloud services.