What are these emails I'm getting? These notifications are the triggered emails you get when an action occurs within PI. Those triggers are set up on the System Wide Auto Alert page and can be a wide variance of things;
- Task started
- Task assignment changed
- Comment added or @mentioned
- Work Item overdue and many many more!
The User Preferences page found on the drop down under your Profile will give you the checkbox to enable these types of notifications. There are Two Types of Email Notifications, see document for more info.