Can ISA users receive approver notifications?
Yes. You can send approval notifcations to ISAs as well.
Login to the /paradmin interface, go to Mail Agent menu and select Email Config.
Select "Release Request" from the Email Type drop down.
At the bottom you will see "Send To" options. Select the types of users you want to receive the email and Save Changes.
WARNING: This will send the notification to ALL ISA users. It is an all or none option.