This article is very long but highly detailed.

The Real Collusion Story

".....Americans instinctively take intentions into account when determining guilt. As a strict matter of law, however, it was vapid. The mishandling of classified information falls into the category of a “non-intent crime.” It’s a type of objective recklessness, like running over a pedestrian while blowing through a red light. Violations of this sort trigger criminal liabilities regardless of the offender’s state of mind.

But let’s assume that some clever lawyer in the Department of Justice discovered a very learned and superficially compelling rationale for applying Obama’s fictive standard of intent. Even so, Hillary Clinton couldn’t clear the hurdle. The sheer volume of classified material the FBI recovered from her server constituted proof of intent. “Fifty-two email chains . . . contain classified information,” Comey said.

Particularly <snip>ing was the form this material took. It is impossible to paste a classified document into an unclassified email accidentally, because the three computer systems (Unclassified, Confidential/Secret, and Top Secret) are physically separate networks, each feeding into an independent hard drive on the user’s desk. If a classified document appears in an unclassified email, then someone downloaded it onto a thumb drive and manually uploaded it to the unclassified network — an intentional act if ever there was one.

One of Clinton’s emails suggests that downloading and uploading material in this fashion was a commonplace activity in her office. In June 2011, a staffer encountered difficulty transmitting a document to her by means of a classified system. An impatient Clinton instructed him to strip the classified markings from the document and send it on as an unclassified email. “Turn into nonpaper w no identifying heading and send nonsecure,” Clinton instructed. .....

https://www.nationalreview.com/2018/03/russia-collusion-real-story-hillary-clinton-dnc-fbi-media/