Intervals will automatically notify people when certain events occur, for example, when updating a task or uploading a document. By default, each person with a login will be opted in to these email notifications. If you would like to turn some off, click on My Email Preferences, which can be found in the menu under your profile picture and name in the upper right corner.
Administrator level users can manage these settings for all of their users via the people section as well.
The list of email notifications is in the lower left column. Uncheck the box for each one that should be turned off, then click Save. These can be turned back on any time from this same page.
You can roll your mouse over the lightbulb / tooltip icon to learn more about each email notification.