In this article

• Turn Clutter On
• Use Mark as Clutter to identify low priority items
• How Clutter filters messages

Turn Clutter on

1. Sign in to Outlook Web App. For help, see Sign in to Outlook Web App.
2. At the top of the page, select Outlook (or Mail). Or, select the App launcher , and then select Outlook.
3. Go to Settings > Options > Mail > Automatic processing > Clutter.
4. Choose Separate items identified as Clutter.
5. Click Save to save your changes, or Discard to cancel.

Help Clutter learn your preferences faster

It might take Clutter a few days to fully adapt to your preference, as the system records your choices and uses the information to identify similar messages in the future. But you can help Clutter learn your choices faster:

• If you see a message that was sent to Clutter by mistake, right-click the message and choose Move to inbox.
• If you see a low priority email in your Inbox, right-click the message and choose Move to Clutter.

Note   Moving an email in or out of the Clutter folder, from any of your devices, is enough to give the signal to the Clutter system that an item is Clutter or not. For example, if you move an email to the Clutter folder in Outlook desktop, or the Mail app on your phone, the action gets recorded in the Clutter system on all your mail apps. You don’t have to do this individually in each app.

How Clutter filters messages

Clutter helps you focus on what’s important by automatically filtering out messages you’re not likely to read. Messages from certain people will never be identified as clutter:

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

For mail from everyone else, you teach the system what kinds of content interest you by interacting with your mail. No extra work is required. Clutter learns which kinds of messages you frequently read and uses that to determine if a new item is likely clutter or not.

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, the Clutter feature learns and adapts.

Turn Clutter off

You can turn Clutter off anytime in Outlook Web App.

1. Follow the steps at the beginning of this document to sign in to Outlook Web App. Then, go to Settings > Options > Mail > Automatic processing > Clutter.
2. Select Don’t separate items identified as Clutter, and then click Save.

Note   The Clutter folder remains in Outlook after you turn off Clutter feature. If you don’t want the folder listed under your Mailbox, move the emails from Clutter to other folders, as appropriate, and then right-click the Clutter folder and choose Delete Folder.