Microsoft has informed administrators that it will disable and remove Outlook Web Access (OWA) Light as part of the August 2026 update for the on-premises version of Exchange Server. This feature, which was deprecated on August 19, 2024, may still catch some users by surprise when it is finally discontinued.
OWA Light, distinct from the recently retired Outlook Lite Android app, is a simplified web client for Exchange. Launched alongside Exchange Server 2007, it was designed to support users with older or unsupported browsers, initially accommodating those not using Internet Explorer 6 or 7. The product manager at the time referred to it as “The Product Formerly Known as OWA Basic.” While it provided basic functionalities such as inbox and calendar views, it lacked features like weekly or monthly calendar views, access to shared mailboxes, and task management capabilities.
In its announcement, Microsoft acknowledged the long-standing utility of OWA Light, stating, “OWA Light served customers well for many years. It was designed for older browsers, slower connections, and scenarios where a simplified web interface helped users access mail in environments that could not support the full Outlook Web App experience.” However, as technology has evolved, the need for such a legacy service has diminished.
The full Outlook on the web experience now supports modern browsers including Edge, Firefox, Chrome, and Safari on Apple devices, with some features available on Linux as well. Microsoft pointed out that maintaining OWA Light has become increasingly complex, particularly as the company enhances security measures against modern web threats. “Maintaining a separate legacy OWA Light experience increases complexity,” Microsoft noted, emphasizing the challenges of supporting multiple content rendering paths and compatibility layers.
As a result, the service, which has been in existence since the era of Windows Vista, will be officially retired next month, marking the end of an era for a tool that dates back to the early days of Windows XP.
This article was produced by NeonPulse.today using human and AI-assisted editorial processes, based on publicly available information. Content may be edited for clarity and style.
