Use Clutter to sort low priority messages in Outlook on the web
Clutter moves your low priority messages out of your Inbox so you can easily scan for important messages. Clutter analyzes your email habits, and based on your past behavior, it determines the messages that you’re most likely to ignore. It then moves those messages to a folder called Clutter, where you can review them later.
For more information on using Clutter, go to Microsoft's website.