As Secretary of State, it is reasonable to assume that her email correspondence would include information that would fall into the categories of either "Classified" or "Top Secret." Because of this, there are regulations which specify that the server used for such communications must be certified as secure enough to handle this type of correspondence. Hillary should be forced to produce the documentation showing that the certification process was completed, and by whom. If no such documentation exists, she is in violation of the security requirements as prescribed by government regulations. Also, there is a requirement to maintain a backup server housed in a different geographic location in the event the primary server is damaged or destroyed by fire natural disaster, etc. Was this requirement met? If not, it represents another serious violation.
There are three general titles to classified information; they are Confidential, Secret, and Top Secret. Within these, too, there are need to know rules. So, for example, I may have a Top Secret Clearance, but that doesn’t entitle me to TS information unless I need to know it for my duties. For DoD, there is also the OPSEC rule - Operational Security - where we don’t disclose operational security even if it’s not classified. That’s kind of what I meant by the SEC of State’s position’s email. Nearly everything these people write about and read about is about things that we don’t want our adversaries to know. Nation’s spy on us to glean that information. That’s what is unbelievably stupid. None of this Clinton modus operandi makes any sense on any level.