Exchange Online – Reminder Clutter is going to go away on Jan 31st 2020

This is a reminder to brink back to your attention that Clutter (the email sorting/classification tool introduced in Exchange Online back in 2017) is going to be turned off for good in January 31st 2020.

If you (or your end-users) have been using it, it will then be fully replaced by the Focused Inbox feature. It is now a good time to communicate to your end-users about it.

If you need to identify which  mailboxes have the Clutter feature still enabled, you can use PowerShell to connect to Exchange Online and lookup for these mailboxes:

  • If you use the Exchange Online PowerShell module (which supports MFA and modern authentication) just use it and connect with


  • If you are still using the ‘old fashioned’  way use

$cred = Get-Credential

$Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri -Credential $cred -Authentication Basic -AllowRedirection

Import-PSSession $Session

  • Then you can query your mailboxes with the following command to identify which mailboxes still have Clutter enabled

Get-Mailbox | Get-Clutter | Where {$_.IsEnabled -eq $true} | Select-Object MailboxIdentity,IsEnabled


Then you can target the communication to these users only and then turn Clutter off if you don’t want to wait until January 2020

To turn off Clutter, just run

Get-Mailbox <mailbox with Clutter enabled> | Set-Clutter -Enable $false

Reminder: the Clutter folder will not be deleted, only the sorting functionality will be turned off

Then if you want to enable Focused Inbox on behalf of your users, you can run the command

Set-FocusedInbox –Identity <mailbox to enable Focused Inbox> -FocusedInboxOn $true

If you prefer to let your end-users do it, you can refer them to

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