“Whoever, being an officer, employee, contractor, or consultant of the United States, and, by virtue of his office, employment, position, or contract, becomes possessed of documents or materials containing classified information of the United States, knowingly removes such documents or materials without authority and with the intent to retain such documents or materials at an unauthorized location shall be fined under this title or imprisoned for not more than one year, or both. “

Applying that to Hillary's case is a bit of a stretch. It's not like she was downloading all the confidential stuff at the White House and emailing it to herself. And anyone emailing to clintonemail.com would presumably guess that was going to the Clinton's email server.