Microsoft 365 Message Center

An archive of Message Center updates - curated and preserved for when Microsoft changes things faster than you can say "rolling out." Find the latest and past Message Center posts right here. Updated daily at 1am (UK time).

MC1101906: Offline Support for Calendar - Create, Edit and Delete Event support

Offline support for creating, editing, and deleting single calendar events in the new Outlook for Windows will be available from mid-June to mid-July 2025. This feature requires the `OWAMailboxPolicy -OfflineEnabledWin` setting to be true. Recurring events are not supported offline. Admins can ma...