How can I disable the all the Mailbox features for all users except the IMAPI and then allow the OWA and ActiveSync for certtain users.

http://technet.microsoft.com/en-us/library/bb125264(EXCHG.80).aspx Set-CASMailbox

Hi, Try this: Open Exchange management Shell Set the scope to forest level to get the complete list of mailboxes if you have multiple domains. $AdminSessionADSettings.ViewEntireForest=$true Now run the below commands one by one, it will take some time for each command to complete as it is runnign across all the mailboxes in you renvironment. Get-mailbox -ResultSize Unlimited | Foreach-Object { Set-CASMailbox -Identity $_.Identity -OWAEnabled: $false -Confirm: $False} Get-mailbox -ResultSize Unlimited | Foreach-Object { Set-CASMailbox -Identity $_.Identity -ActiveSyncEnabled: $false -Confirm: $False} Get-mailbox -ResultSize Unlimited | Foreach-Object { Set-CASMailbox -Identity $_.Identity -PopEnabled: $false -Confirm: $False} Get-mailbox -ResultSize Unlimited | Foreach-Object { Set-CASMailbox -Identity $_.Identity -ImapEnabled: $false -Confirm: $False} We can use the below script to disable UM as well. However, i am not sure if there would be any undesired effects of doing this when, i would say please read more about disabling UM and then proceed to disable it. Get-mailbox -ResultSize Unlimited | Foreach-Object { Disable-UMMailbox -Identity $_.Identity -Confirm: $False} Thanks Shiv

Note that these 2 will disable everyone for OWA and ActiveSync which you may not want to do per the original post. Get-mailbox -ResultSize Unlimited | Foreach-Object { Set-CASMailbox -Identity $_.Identity -OWAEnabled: $false -Confirm: $False} Get-mailbox -ResultSize Unlimited | Foreach-Object { Set-CASMailbox -Identity $_.Identity -ActiveSyncEnabled: $false -Confirm: $False}

Hi Andy, Yes, i understood the requirement is to disable owa and other features for all users in organization and enable few features only for few users. If your requirement is to Enable OWA for only one user Get-mailbox -Identity "Alias" | Set-Casmailbox -OWAEnabled: $True If your requirement is to disable OWA for only one user Get-mailbox -Identity "Alias" | Set-Casmailbox -OWAEnabled: $True

Hi Vministrator, Could you please also tell which verion of Exchange server do you use? If you are using Exchange 2003, you cannot use the cmdlet. If you are using Exchange 2003 coexistence with Exchange 2007, after you run the cmdlet to disable the feature, you cannot change the option with ESM, because the feature option will be disappeared in the user's properties.Frank Wang

Exchange Server 2007 SP2