>Everything that someone else could do on an email server that they run for you, they could just as well package into, say, an install CD image, which you then could use to run your own functionally equivalent, hopefully well-configured and well-updated, mail server.
Gmail won't give you their entire software stack (also good luck running it even if they did). Neither will any of the other big players.
Gmail won't give you their entire software stack (also good luck running it even if they did). Neither will any of the other big players.