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Disable OWA for All Users Except One Group

Last Modified: 2015-04-22

Our company wants to disable OWA for all users except the users in the "Managers" AD security group. I came up with this script below but wanted to know if there was a better way. Also from my searches, there is still no way to make OWA disabled for new users by default?

Thank you.

AD level 2003 on 2008R2 DC's
Exchange 2010 SP3

Get-Module -ListAvailable | Import-Module

get-mailbox -OrganizationalUnit "OU=Users,DC=MyDomain,DC=com" | Set-CasMailbox -OWAEnabled $False

Get-ADGroup -filter {name -like 'Managers'} | Get-ADGroupMember -Recursive | Get-ADUser -Properties MailNickName | select -ExpandProperty MailNickName | Set-CasMailbox -OWAEnabled $true

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