Retirement of Outlook Lite app [MC1148534]

Retirement of Outlook Lite app [MC1148534]

Message ID: MC1148534
[Introduction]
The Outlook Lite app will be retired starting October 6th, 2025. After this date, new installations will be blocked. Existing users can continue using the app for a limited time before full retirement. The Outlook Lite app is being retired so we can focus our investments on the Outlook Mobile app, our flagship Android experience, which provides better functionality and user experience. We recommend transitioning to the Outlook Mobile app, where ongoing development and support will continue. 

[When this will happen]
Retirement begins: October 6th, 2025
Full retirement: Expected within a few months after retirement

[How this affects your organization]
Organizations will only be impacted if users currently use the Outlook Lite app. After retirement, no new installations will be possible, and eventual retirement will require users to switch to Outlook Mobile app.

[What you can do to prepare]

  • This change will happen automatically by the specified date.
  • No admin action is required.
  • Please notify your users about this change, update relevant documentation as appropriate, and encourage installation and migration to Outlook Mobile app.

Recommended alternative – Outlook Mobile:

To continue enjoying a secure and feature-rich email experience, we recommend switching to Outlook Mobile. Here’s how to get started:

  1. Within the notification section in your Outlook Lite app, select the Install Microsoft Outlook banner.
  2. Or open the Google Play Store.
  3. Search for Microsoft Outlook.
  4. Download and install the app.
  5. Log in with existing credentials to access email, calendar, and files.

Data access:

No manual migration is required. All existing data (emails, attachments, calendar entries) will be accessible via Outlook Mobile app upon login.

Feature availability in Outlook Mobile:

  • Enhanced security and productivity features
  • Access to third-party email accounts
  • Seamless integration with Microsoft 365

Learn more:

[Compliance considerations]

Compliance Area Impact
Customer data access Users will no longer be able to access personal data through Outlook Lite app after retirement. Data remains accessible via Outlook Mobile app.
Purview capabilities DLP enforcement is not supported on Outlook Lite app. Outlook Mobile app supports these capabilities.
Admin control via Entra ID Admins can manage access to Outlook Mobile app using Entra ID group membership and Conditional Access policies.
User control Users can install or uninstall Outlook Mobile app independently via the Google Play Store.

Source: Microsoft

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