Just_me is correct. You'll have to turn off your email notification setting through your QuickBooks Community profile, @Dragon7. Let me show you the steps below.
1. Navigate to this site: QuickBooks Community.
2. On the upper right corner, click Sign in. Then, enter your credentials.

3. Click on Community, then choose Community Home.
4. Click your initial on the upper right corner, then choose Sign in the Community.

5. Select the profile icon beside your initial. Then, choose My profile.

6. Click on Edit.

7. On the SUBSCRIPTIONS & NOTIFICATIONS tab, select Notification Settings and then tick the checkboxes you want depending on your preferences.

If you need further help about QuickBooks products, you can browse through this resource: QuickBooks Q&A.
We'll keep this thread open for you to come back freely if you'll need further assistance about turning off yuour notifications in Community. We tend to enhance your experience in this forum. Take care.