We have a bit of a strange issue with Outlook 2000 and new email notifications. I have a fear that it may only be solved with an upgrade to Outlook 2003 or better (which we can't afford to do right ...
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 ...
How to enable old-style Outlook notifications in Windows 10 Your email has been sent There is a way to change back to old-style Outlook notifications, but it's convoluted because Microsoft hid it so ...