Microsoft to Let Users Launch New Outlook for Windows Without Internet Access

Microsoft has started rolling out an update that adds Offline support to its new Outlook for Windows client. This new feature allows users to open and restart the app without requiring an internet connection.

Microsoft originally introduced offline mode for its new Outlook for Windows application in June 2024. When this feature is enabled, the new Outlook client stores copies of users’ emails, calendar events, and contacts on their devices. With Offline access, users can read, manage, and view Outlook items, as well as perform various actions such as archiving, categorizing, deleting, and pinning emails. They can also view and update their settings, including automatic replies, categories, email accounts, and contact lists.

Until now, an active internet connection was necessary to open or restart the app, but this requirement is about to change. “Previously, you needed a connection to the internet to open or restart the new Outlook. Offline access is only supported when the app is already running and then goes offline. Opening and restarting the app while offline will be introduced with this rollout,” the company explained on the Microsoft 365 admin center.

Admin controls for offline access in the new Outlook for Windows client

The new offline capability for the new Outlook for Windows client will be generally available to commercial customers by late November. This feature will be enabled by default, but enterprise administrators can disable offline access by setting the Exchange PowerShell Set-OwaMailboxPolicy cmdlet parameter OfflineEnabledWin to “False.”

Microsoft announced the general availability of its new Outlook for Windows app in August. The company will continue to support the classic Outlook app, and any forced migrations won’t happen without a 12-month notice. Microsoft has also introduced a new policy to streamline the transition to the new Outlook for Windows client.