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Enable or Disable Clutter for Office 365 Users

After understanding what is Office 365 Clutter , we are going to illustrate how can you enable or disable Clutter for Office 365 user or all users

You have to know that this can be done through PowerShell

Connect to Office 365 using PowerShell

To enable clutter for one user run:

Set-Clutter -Identity -Enable $true

To disable clutter for one user run:

Set-Clutter -Identity -Enable $false

To enable clutter for all users run:

Get-Mailbox | Set-Clutter -Enable $true

To disable clutter for all users run:

Get-Mailbox | Set-Clutter -Enable $false

How to find out who has clutter enabled or disabled

You can use the script attached here to Export all Office 365 users Clutter status to a CSV file

This PowerShell script connects to Office 365 and lists out all mailboxes and shows you if each user has Clutter enabled or disabled for their mailbox.

Sources: Cogmotive Blogs



What is Office 365 Clutter ?

Clutter is an email filtering option available to Office 365 customers.  It is similar to an anti-spam filter as it moves less important email (based on your reading habits) into a ‘Clutter’ folder where they can be ignored or reviewed later.  Most of the mail going into the folder should be bulk mail (advertisements) and messages from mailing lists.  However, you will want to periodically check the Clutter folder as it may move legitimate email into this folder.

How Clutter filters messages

Clutter and junk email are both filtered out before they reach your Inbox. Junk email is evaluated and filtered first, then Outlook processes the rules (if you have set up any). Next, Clutter analyzes the remaining messages and filters out the types of messages that you usually ignore or don’t respond to, based on your past behavior.

Messages from certain people will never be identified as clutter:

  • You
  • Anyone in your management chain
  • Your direct reports

Clutter looks at various aspects of messages to understand what you don’t typically read, for example:

  • The sender
  • Whether you’ve participated in the conversation
  • If you’re the only recipient
  • The importance

As your reading habits change, Clutter learns and adapts.

How Clutter will look like in Outlook ?

clutter outlook


How Clutter will look like in OWA?

clutter OWA

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.


Sources: Article, MS support

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