And, this may just be personal perception, but I swear that all mail servers are coded to be suicidal.
Yeah, no shit. This is what I found in the logs some day:
dovecot: Time just moved backwards (1173189603 -> 1173189602)! This might cause a lot of problems, so I'll just kill myself now.
There's no need for everyone to have a 30/10 Internet connection.
Oh but there is. It's beneficial for ISPs to make everybody need the most expensive plan. Want to view the news, fine. Want to check email? Sorry, that's only on the most expensive plan. You don't use it a lot but you pay top dolla'!
No amount of careful planning will ever replace dumb luck.