Of course, the tradeoffs would be different for someone else. For me email is simultaneously important enough I don't want to risk me messing it up and uninter

Of course, the tradeoffs would be different for someone else. For me email is simultaneously important enough I don't want to risk me messing it up and uninteresting enough that i done want to spend the time really getting it right. The Freedombox mail server would be just as much of a black box to me as Fastmail except Fastmail comes with a SLA and someone else to fight fires. For now at least - $100/year to have someone else look after it for me is the right tradeoff for me.