I'm not having any luck researching on this so I'm hoping someone can give me some links or search phrases or ideas. This Tony Redmond book I have is really awful.
I want to manage mailboxes based on group membership. For example, Group A can't send outside the organization, Group B has different storage and send limits, Group C can only send / receive from whitelisted addresses....
I also want mailboxes grouped when viewing the global address book. It's awful how all mailboxes and contacts are just lumped in there.