Outlook can alert you to a variety of actions with sound effects. You can control some of these sounds through the Outlook options pane, while other settings are controlled by Windows. New message notifications When you receive a new message in Outlook, you can receive alerts with sounds, a message pop-up notification, or simply a change in the Outlook icon in the status bar. To change these …
https://support.microsoft.com/en-us/outlook/turn-sound-effects-on-or-off-in-outlook

