The (commonly known as OWA or Outlook on the web ) is the browser-based version of Microsoft's professional email and personal information manager. It provides users with secure, remote access to their email, calendar, contacts, and tasks from virtually any device with an internet connection, without requiring a local software installation. The Evolution of Outlook on the Web
The modern web application offers a feature-rich environment that often rivals the Outlook Desktop App . Get to know Outlook on the web - Microsoft Support
Microsoft is currently unifying the web and desktop experiences. The "New Outlook for Windows" is essentially a web-based shell that closely mirrors the browser experience, aiming for a consistent look across all platforms. Core Features for Modern Productivity
The web version of Outlook has undergone several major transformations since its inception to keep pace with modern web standards and user needs.
Originally created by the Exchange Server team, the first customer version shipped in 1997 as Outlook Web Access .
The service was renamed to Outlook Web App in 2010 and eventually to Outlook on the web in 2015 as it became more integrated with the Microsoft 365 ecosystem.