Hi there, gravity. Let me help you navigate how to customize emails received.

 You can turn off an option by navigating to your QuickBooks Online account to stop receiving email notifications.

Here's how:

1. Go to the Gear icon.
2. Select Payroll Settings.
3. On the Email notification tab, click the Edit/pen icon to turn it on/off.
4. Click Save and Done.

For future reference, if you want to know how to turn on work email notifications you can check this article.

Feel free to post a reply if you want to know more about navigating your QuickBooks Online Accountant. I'll be happy to assist you. Have a good one!