Outlook Web App has no Desktop Notification support. Probably because IE doesn't support it as well...
I missed to much mails because this feature is missing...
- Install user script manager in your browser:
- Cromium based browsers: Tampermonkey
- Firefox: Greasemonkey
- Opera 9.x: Violent monkey
- Open this links and install the script:
- Change @match to your Outlook Web App URL
Public Domain