Best Practices

What we really want to do here is encourage you to design your system on paper rather than in stone. After you have created domains and named them, you cannot go back without starting over. When users have mailboxes in one place, it is extremely tedious to move them to another place. It is especially annoying when you have to do this because your boss does not like the name of the post office, but more often than not I see this being done because post offices were too large to begin with.