According to the disclosed design of the app One Outlook, is introduced as the latest version of Outlook which was created for large screens.
Functions of One Outlook
According to reports the currently disclosed app cannot operate without a full internal Microsoft account. It has been informed that this software replaces the desktop (win32 and UWP) versions of Outlook, Outlook Web Access (OWA), and the MacOS desktop client.
Microsoft alerts employees that the disclosed software is obviously in the early stages and is currently built for “brave dog food.” Additionally, it does not have an offline mode. “Dog food” is a concept used to test, and use early versions of your own code by Microsoft and other software companies.
Core Technologies of One Outlook App:
OWA Powered Experiences (OPX)
This technology has been designed to deliver features such as the redesigned Room Finder, which is used by the Calendar to find acceptable meeting rooms. In reference with researches, over the last few years, Microsoft has spent significant time rewriting OWA in React to lay a foundation for OPX and make it possible for other customers to consume OWA characteristics. Also, at the same time OWA is rendered faster by the new React code base while consuming less device resources.
Microsoft Sync Technology
This is the synchronization protocol operated by Windows 10 Mail app and the web Outlook clients. It is used by Outlook for Mac and Outlook for Windows, which uses it to replace MAPI over HTTP, which also synchronizes data with online exchanges.
Augmentation Loop
This synchronizes all the data types and services consumed by the Outlook software. The Augmentation loop feature manages the consumption of cloud resources.
A Summary of the Outlook Versions Published
| Version Name | Version Number |
| Outlook 97 | 8.0 |
| Outlook 98 | 8.5 |
| Outlook 2000 | 9.0 |
| Outlook XP/2002 | 10.0 |
| Outlook 2003 | 11.0 |
| Outlook 2007 | 12.0 |
| Outlook 2010 | 14.0 |
| Outlook 2013 | 15.0 |
| Outlook 2016 | 16.0 |
| Outlook 2019 | 16.0 |
| Microsoft 365 | 16.0 |
Which Outlook App Can Be Used?
Outlook – accessible to purchases as a component of Microsoft 365 or Microsoft Office.
Web Outlook – is available at Microsoft 365 portal through many browsers.
Mail and Calendar – accessible to Android and iOS devices.
Final Replacement
Even though the early version of Outlook has been accidentally disclosed, the ultimate replacement of Windows 10 Mail app may not be able to make an appearance up to next year. It has been stated by the Windows Central that by the end of this year, this client might join a broader preview program with the objective of replacing Windows 10 Mail and Calendar apps in 2022.
Microsoft’s New Space features were also leaked in February 2020. Twitter user Walking Cat revealed the new tool in a leaked video. It was built to help businesses and students while making projects.
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