Don't you still, typically? I mean, I am sure if you look hard enough there are instances where someone travels to work from afar, but in my experience the mailman has always been someone who lives within the same community.
No, lately where I live there are multiple courier services, you never tend to see them (they drop stuff off in the mailbox), and even more recently, they just drop the letters off in a locker nearby and I go pick them up myself.