Outlook for Windows | |
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Other names | New Outlook, Outlook (new) |
Developer(s) | Microsoft |
Initial release | September 21, 2023 |
Stable release | 20250620014.12 / June 27, 2025 [1] |
Written in | Microsoft Edge WebView2 |
Operating system | Windows 10 and later |
Predecessor | Mail, Calendar, People [2] |
Type | Personal information manager |
License | Proprietary commercial cloud software |
Website | products |
Outlook for Windows (also referred to as New Outlook) is a personal information manager developed by Microsoft. It is a replacement of the preloaded Windows Mail, Calendar apps and the contact management People app on Windows 10 and 11 [3] and is preinstalled with all versions of Windows 11 since October 2023 (beginning with version 23H2) and Windows 10 since February 2025. [4]
Outlook for Windows was outlined under Microsoft's 'One Outlook' plan, with testing starting in 2022. [5] In September 2023, Microsoft started transitioning users of the previous apps to the new Outlook. [6] It was released on the Microsoft Store that month, although it remained in preview status for enterprise and education users. [7]
Outlook for Windows is a web app based on the WebView2 runtime, [8] [9] and builds on features found in Outlook on the web. [6] It still lacks some features from Microsoft Outlook (which Microsoft refers to as Classic Outlook in this context [10] ), such as support for .pst files, which is due to be added at a future date. [11] [7]
The free version includes advertising and allows IMAP accounts to be set up. [12] It does not support iCloud aliases, but it is able to work offline. [13] [14]
Outlook for Windows has attracted controversy surrounding the decision to synchronize emails from Non-Microsoft accounts with the Microsoft cloud, rather than downloading the email to local devices as previous Outlook clients have done. Concerns have been raised around the privacy implications of such a system. [15]