Last updated: April 2025 Outlook for mobile features, add-ins, and known issues [INVESTIGATING] Invitations might be sent twice from an Outlook mobile app when a new attendee is added to a meeting [INVESTIGATING] Updating the location for an instance of a recurring event doesn't sync with Outlook Mobile Calendar [INVESTIGATING] Meeting instances from recurring meetings fail to delete from the recipient's calendar in Outlook Mobile [INVESTIGATING] Out of Office replies for an On-premises Exchange mailbox are not working when enabled from Outlook Mobile