She received at least 110 classified e-mails marked as such, up to Top Secret in classification at the time they were sent. She also received somewhere upwards of 2,000+ that were in part either classified at the time or were later classified. She broke the law.
18 U.S. Code § 1924 Unauthorized removal and retention of classified documents or material
https://www.law.cornell.edu/uscode/text/18/1924
18 U.S. Code § 793 - Gathering, transmitting or losing defense information
https://www.law.cornell.edu/uscode/text/18/793
This last one is a slam dunk in Hillary's case. She knowingly used an unsecure server and clearly received over a long period of time documents that she knew, or should have known were classified and did nothing about it. That is gross negligence, and chargeable. As SoS, she was privy to classified information and held a security clearance. So, she would have known if something were classified or not upon looking at it as it would be clearly marked such. In at least 110 cases, the document(s) was so marked as the FBI determined. In another over 2,000 cases, there were indicators it was classified. It wasn't one time, but many over a period of years.
She is guilty as fuck.