Snowden hasn't leaked anything from Hillary's email server.

[rogerashton]

6. OK, I have learned something.

Apparently Guccifer hacked many US and UN figures with the intention of proving that they are members of the Illuminati.

https://pando.com/2015/03/20/exclusive-interview-jailed-hacker-guccifer-boasts-i-used-to-read-hillarys-memos-for-six-seven-hours-and-then-do-the-gardening/

Nevertheless, some important Clinton emails evidently were leaked and published by RT on the basis of Guccifer's hack. However, it was Blumenthal's AOL account that Guccifer hacked, not Hillary's server. (I'm not sure what sort of a source Pando is.)

http://www.rt.com/usa/complete-emails-guccifer-clinton-554/

According to Pando, Guccifer also hacked the Bushes, Colin Powell, and a UN figure, with AOL accounts particularly vulnerable. I would say that this is evidence that official emails are vulnerable enough across the board that the private email server did not increase the vulnerability of her communications -- and it remains the case that to the best of my knowledge, the Clinton server (unlike AOL) was not hacked.