Microsoft's redesigned One Outlook app for Windows 11 is now available to more users

Microsoft is developing a new web-based application for creating the Outlook experience on Windows 11 and Windows 10. The "Project Monarch" project aims to create "One Outlook" for all desktop platforms, which supports work/school as well as personal accounts.

From now on, anyone in the Microsoft Office Insider Program can access the new Outlook app. To get started, simply join the Office Insider Program by following these steps: Open any Office app > File > Account > Office Insider > Join the Office Insider Program, and select a channel to participate in the beta.

The user can select the Release preview channel and agree to the terms and conditions, then click OK. Once complete, users can click "Try New Outlook" in the upper-right corner of the Windows desktop Outlook client and start downloading the new application.

After sliding the toggle switch, users simply follow the on-screen instructions. For example, the updated Outlook application includes prompts to help users migrate all data from the previous application. Of course, if users don't like the new Web-based Outlook application, they can always go back to the previous Outlook experience by turning off the toggle switch.

In addition to the wider rollout, Microsoft is also adding some new features to the email client in today's update:

• Personal accounts are now supported: Microsoft accounts such as Outlook.com can now be added to the Outlook application. Previously, only work or school accounts were supported.

• Quick steps: Outlook now shows personalization actions to keep your inbox clean and organized.

• Cleaner UI: now allows to adjust the width of the columns in the calendar.

• Simplified Ribbon Options: The new Ribbon options have a sleeker look and feel.

• Tip: You can now view tips for more useful features and more.

Get started with the new Outlook app

When you start the Outlook application for the first time, you will be asked to import settings from an existing Outlook application on Windows. This is because the app currently works with the desktop app, it's still in development. Users can import settings such as themes from previous applications.

One Outlook is basically the same as Outlook.com, but it is optimized like a native app, with a ribbon at the top, making it look like a full-fledged desktop app. It has "View" and "Home" buttons, as well as other features like theme settings, to-do lists, etc., available in the top right corner of the app.

Microsoft is also working on Mica materials and other design improvements for the Outlook app.