Bulk Enable ActiveSync using Exchange PowerShell

Lets Start by search for all Mailboxes with ActiveSync Disabled.

Open Exchange Powershell and Type the following.

Get-CASMailbox -Resultsize Unlimited | Where-Object {$_.ActiveSyncEnabled -eq $false}

Now that we have a list of Users with ‘ActiveSyncEnabled’ set to ‘false’ , lets change this and Enable ActiveSync for these Users.

Get-CASMailbox -Resulsize Unlimited |Set-CASMailbox -ActiveSyncEnabled $True

Once done all users will have ‘ActiveSyncEnabled’ set to ‘True’