Clutter is an email sorting tool available to Office 365 customers.  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. Microsoft's full description of Clutter is available here.

Individuals can choose to enable or disable the Clutter features using these instructions:

If you are using OWA and need to mark messages as "not clutter",  either right click on the message and choose 'Mark as not clutter' or just drag it to the Inbox. If Exchange is missing messages you want marked as clutter, right click and choose 'Mark as clutter' or drag it to the Clutter folder. In Outlook and other clients, you’ll need to drag a message to the clutter folder to mark it as clutter or drag it to the Inbox to mark it not clutter.

Users can drag messages they deem suitable to the Clutter folder to "train" the tool to spot similar email in the future. The tool gets smarter over time, learning from your prior actions with similar messages.

Once Clutter is enabled in OWA, it appears in other clients linked to that Exchange account, including Outlook on both Windows and OS X desktops and notebooks, and the iPhone and Android OWA apps.

Note:  If you have rules moving messages, Clutter is applied after server-side rules are applied and items touched by rules won't be filtered by clutter.

The University of Iowa Office 365 email system is configured so several email domains will bypass Clutter sorting and deliver directly to the email inbox. If Clutter is enabled the tool will continue to sort email messages from non-bypassed domains.

The Clutter bypass list is limited to services centrally provided to the University of Iowa population. If you would like to nominate a domain name for Clutter bypass, please contact the ITS Help Desk.

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Last updated: 
September 12, 2017