I have found the exim-4 packages to be extremely well organized and handy. I used to use the "one-file" method, and was simply delighted when I found how easy it was to switch and tweak the individual files that I needed to when I had to create a more complicated mail server.
Thomas -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]