It sounds like your son's Outlook calendar has been shared with your email account, which is why you are receiving reminders for his events. To unlink your email from his calendar, you can follow these steps:
- Remove Shared Calendar: If your son shared his calendar with you, he can remove your access by going to his Outlook calendar settings. He should:
- Open Outlook and go to the Calendar view.
- Right-click on the calendar he shared with you.
- Select Sharing Permissions or Share Calendar.
- Find your email address in the list and remove it.
- Check Account Settings: Ensure that your email account is not set up as a delegate for his account. If it is, he can remove it by going to:
- File > Account Settings > Delegate Access.
- Remove your email from the list of delegates.
- Check for Multiple Accounts: If you have multiple accounts set up in Outlook, ensure that your son's account is not inadvertently linked to yours. You can manage your accounts under File > Account Settings > Account Settings.
After making these changes, you should stop receiving reminders for your son's calendar events. If the issue persists, consider reaching out to Microsoft support for further assistance.