Theregister Microsoft to Disable OWA Light in Exchange Server Update
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- •OWA Light will be disabled in August 2026, affecting on-premises Exchange Server users.
- •The feature was deprecated in August 2024, and users are encouraged to transition to the full Outlook web experience.
- •Microsoft aims to enhance security and reduce complexity by retiring legacy systems like OWA Light.
Microsoft has announced the removal of Outlook Web Access (OWA) Light in an upcoming Exchange Server update scheduled for August 2026. OWA Light, which served as a simplified web client for older browsers, was deprecated on August 19, 2024. The decision to retire OWA Light aims to reduce legacy complexity and enhance security as modern web capabilities have evolved. Users will no longer have access to OWA Light after the update, and administrators can disable it immediately using specific commands. The shift reflects the need to focus on the full Outlook on the web experience, which supports modern browsers and improved security measures. Microsoft emphasized that maintaining OWA Light has become increasingly difficult due to its outdated nature and the need for frequent updates to the main OWA service.
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