If you are an administrator user on Office 365 you are automatically set up to receive emails about Office 365 changes. You may not want these especially if you are not the primary admin user.
This article shows you how to change these notifications in Office 365 Message Center.
1. Log into https://office.com using your Office 365 email account and password.
2. Click on 'Admin'. If you have not got the Admin option then you are not in the administrator group. You can manage your personal email preferences by following this article.