The Outlook Lite app will retire starting October 6, 2025, blocking new installs and requiring users to switch to the Outlook Mobile app, which offers enhanced features, security, and Microsoft 365 integration. No manual data migration is needed, and admins have control via Entra ID.
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
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:
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:
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. |