Hi guys, I want only users from specified AD group to have access to OWA. Is there a way to restrict OWA for All Domian Users and allow to MyAD_OWA_Group ?

2003:http://technet.microsoft.com/en-us/library/aa996482(EXCHG.65).aspxHow to Disable Outlook Web Access for Specific Users2007/2010:http://technet.microsoft.com/en-us/library/bb124124.aspx How to Enable or Disable Outlook Web Access for a Mailbox User ( With Powershell you could disable for everyone, then enable for that group)Something like:get-casmailbox -resultsize unlimited | Set-CASMailbox -OWAEnabled $falsethenGet-DistributionGroupMember -Identity "Allowed OWA" | Set-CASMailbox -OWAEnabled $truehttp://technet.microsoft.com/en-us/library/aa996367.aspxGet-DistributionGroupMember

Hi Andy, Thanks for your responce! I know about OWAEnabled parameter. The question is how to rule access using AD groups?

With those Powershell commands I listed above you get set access by a specificgroup. (Get-DistributionGroupMember) then pipe to set-casmailbox.Unless you are asking for something else? If you want this to work for any new users you create in the future, you'll have to that individually for each user as you create them or set the powershell commands up as a scheduled script.