You can also try these related scripts:

• Outlook Calendar - Auto uncheck "Email organizer" - Automatically turn off the annoying "Email organizer" checkbox that appears every time you try to respond to an invitation.
• Outlook MailChecker - Checks for new mails arriving in owa and provides a desktop notification
• Outlook MailChecker 2 - Checks for new mails arriving in owa and provides a desktop notification. Works in most scenarios.
• O365_Unread_Email_Script - Tampermonkey script that changes the background color for unread emails in the Outlook page of Microsoft O365 (Office 365)
• Microsoft Edge Ad Blocker - This is blocker for Edge ads on Microsoft websites. DISCLAIMER! Author isn't affiliated with Google, Apple and other Microsoft haters. Suсk it! We all love Microsoft, but sometimes their pushes are a bit annoying