(Cloud) Tip of the Day: How to disable ActiveSync for Office 365 users

Today’s Tip…

To disable ActiveSync for users by using Exchange Online PowerShell, follow these steps:

1. Connect to Exchange Online by using remote PowerShell. For more information about how to do this, go to the following Microsoft website:
   Connect to Exchange Online using remote PowerShell
2. Do one of the following:

• To disable ActiveSync connectivity for a single user, run the following command:
  Set-CASMailbox -Identity <Mailbox ID> -ActiveSyncEnabled $False
• To disable ActiveSync connectivity for a group of users, use the Get-User cmdlet to change the scope of the command.
  For example, to disable ActiveSync for all the users in the Sales department, run the following command:
  Get-User -RecipientTypeDetailsUserMailbox | where {$_.Department -eq "Sales"} | Set-CASMailbox -ActiveSyncEnabled $False
• To disable ActiveSync for all users in an organization, run the following command:
  Get-Mailbox | Set-CasMailbox -ActiveSyncEnabled $False

Exchange Admin Center

To disable ActiveSync for users in Office 365 by using the Exchange admin center, follow these steps:

• Sign in to the Office 365 portal (https://portal.office.com) as a global admin.
• Click Admin, and then click Exchange.
• In the left navigation pane, click recipients, and then click mailboxes.
• Select the user mailbox that you want to change, and then click Edit
• Click mailbox features, and then click Disable Exchange ActiveSync.

• Click OK.