See this Dept. of Justice page on the Federal Records Act. It is plain from this Act that Clinton clearly violated it. Unfortunately, even though guilty, she will likely not be prosecuted.
“Criminal or civil penalties, fines and/or imprisonment for:
- The unlawful removal or destruction of federal records (18 U.S.C. 2071)
- The unlawful disclosure of national security information (18 U.S.C. 793,794,& 798)
- The improper handling of records containing other information exempt under the Freedom of Information Act (5 U.S.C.552), the Privacy Act (5 U.S.C. 552a), and other information to which access is restricted by law.”