I've been following this Hilary email story a bit, and... yeah. I'm not feeling the outrage.
As far as I can tell, it wasn't illegal at the time, 'just' bad practice, and probably intentionally so.
Hillary’s Use of a Private Email Account Was Wrong—but Was It Illegal?
The actual requirement wasn't made law until well after she left office. So, nothing illegal. But given the earlier controversies over segregated emails and non-government servers, it certainly was out there for her to be aware of. And I find it hard to believe that she wasn't aware of them, absent a lot of willful blindness.
As for the security argument, that a private server was less secure than a government one -- who knows? As for preserving records and responding to freedom of information requests, it wasn't a great solution.
It pretty much comes down to this: "At best, Clinton failed to go the extra mile to make sure her emails were part of the official record; at worst, she intentionally sought out a legal gray area from which to do her business."
I assume that it was the latter. She's smart. Very smart. She's highly aware of political developments, the requirements of the law, and she's a skilled operator. I say none of that disparagingly -- quite the contrary. But when even the worst interpretation comes down to 'Clever Politician is Clever', I'll save my outrage for some other time.
And who knows? She might not have anything to do with it. In her position, she was so high up, so big picture, that technical choices like email servers might not even have come to her attention. She relies on other people for that, and has to assume that it's all been vetted, otherwise she can't do her job. Not that she's not ultimately responsible, of course, but the big boss making IT decisions? I can't see it.
Whatever. Another manufactured controversy. Not to say that she's totally innocent -- she probably isn't -- but what then would she be guilty of? Positioning herself within the limits of the law for maximum political advantage? Do we really expect anything else?