You can change notification sounds for emails and calendar events directly within the new Outlook app for Windows. In classic Outlook, you can choose whether to play a sound when a new email arrives.
The settings will automatically save, and the next time you delete an email, it will not show up the message. Make sure to test it out. Read: Email notification sound is not working. Cache is one of ...
If you compose an email in Microsoft Outlook that includes potentially sensitive information (like a credit card or Social Security Number), you may receive a notification, and the message may be ...