Hello, In my exchange 2007 - all users have the Mailbox Feature Exchange ActiveSync turned on by default. I would like to control who can attach a smartphone to my exchange server. So, my first thought was how to change that default setting to Disabled. So, my question is this: - Howdo youchange the default setting to disabled? - Also - is there a way to do it by group memborship in AD? THANKS!!

Hi, Actually, it can NOT be set Disabled by default while creating new users but it can be scheduled to run a script every midnight which disable all new users which are created in last one day... Script to disable ActiveSync every night Add-PSSnapin Microsoft.Exchange.Management.PowerShell.Admin Get-User -ResultSize Unlimited | Where {($_.WhenCreated -gt (get-date).adddays(-1))} | Set-CASMailbox ActiveSyncEnabled $false Regarding how to schedule a script, point 3 in below article can be reffered. Exchange 2007 & Display Name Format Note: This article is for another issue but method of scheduling above script can be referred from it. Suplement: In Exchange 2007 you can disable it for all existing users with below command.. Get-Mailbox -Server "ServerName" | Set-CASMailbox -ActiveSyncEnabled $false You can enable it for users which are in OU "ActiveSyncEnabled" with below command and same can be written in script for multiple OUs... Get-Mailbox | Where-Object {($_.Identity -like 'Contoso.com/ActiveSyncEnabled/*') -and ($_.ExchangeVersion -like '0.1*')} | Set-CASMailbox - ActiveSyncEnabled $True Hope this helps..