In Exchange 2007 RTM to manage Send As we had to use Exchange Management Shell. Using SP1 we’ll have a handy feature available on Exchange Management Console to do that, as it follows:
Open Exchange Management Console, Expand Recipient Configuration, Click on the user, and there two new options at Toolbox Actions. Click on Manage Send As Permission..
We can add the users that will have send as permission on the selected user.
It’s easy, isn’t it? :)
Important: Do not install SP1 in the production environment yet, wait for the RTM Version. For more information: http://msexchangeteam.com/archive/2007/08/29/446867.aspx
How Do I test the Exchange Server 2007 SP1? there is an VHD image available at http://www.microsoft.com/downloads/details.aspx?familyid=bc381af4-9bd0-49dd-be1a-0c6ee49cd2bc&displaylang=en