I think we can be farily certain that the only people who do not know what was on Hillary’s server is the American government and the American people. Almost certainly every world power has a full copy. The closest America has to a “friendly” power who could clear this up by supplying this copy is the Israelis. But they won’t, at least until it’s clear that Hillary won’t be the next president. They would rejoice if she won because they’d tie her up with blackmail. Everybody who has a copy will be in a position to demand whatever they want and she’ll comply. They only care about America’s foreign policy and Hillary only cares about domestic policy. As long as she can bring in real crony socialism she won’t care what happens in the wider world and the wider world won’t care that we’re all socialists now.
I'm pretty sure that, in reality, it's only the American People who don't know. If this crap went on for more that 4 years and our cyber groups didn't know all about this server set-up the entire bunch of them either 1) need to be fired or in jail for gross incompetence, or 2) need to be in jail for knowingly allowing this to occur. This implicates a shit pot more people than Clinton alone.
If this was allowed, as it seems to have been, then we spend a boat load of money on cyber security that is a complete waste.