@maporsche,
At least we have come down from the high plane of overblown generalities.
I believe there were many more than three e mails judged to contain classified information. Moreover I have read reports that several contained summaries of information Classisified as Top Secret special access only.
All of this begs the fact that her server was likely easily hacked, by numerous parties very interested in getting the information, and that such hacking might not leave any traces adterwards.
More to the point even the casual communications and concerns of the Secretary of State may constitute useful information that might compromise our interests if divulged.
One of our greatest intelligence coups of the Cold War was the U.S. tapping (starting in the late 1970s) of underwater cables in the White Sea and in the Pacific in the Sea of Okhost on which the Soviet Navy transmitted administrative information (unclassified and unencrypted by them) about day to day administrative and ship maintenance activities. This activity, supported by brave and skilled submariners, continued for almost a decade, and was properly very highly classified and closely held by us. We didn't collect any formally highly classified Soviet information about weapons technology, war plans or strategy, but we did gain a rather complete understanding that, contrary to our earlier eestimates, the Soviet Navy was a paper tiger, beset by poor equipment reliability, sloppy maintenance by unmotivated crews, gross shortages of spare parts, inadequate training, and in some cases problems arising from the multiple different languages spoken by conscript crews. It turned out that information was timely and precious - it gave us a clear, continuing picture of the ongoing decay and gathering collapse of the Sovier War Machine. That information was indeed vital in the ensuing years as we then consciously abetted an arms race they could not hope to match, thereby accelerating the collapse of the Soviet Empire and ending a 40 year dangerous era of Cold War.
I believe this is the context in which we should judge the behavior of a Secretary of State who has so amply demonstrated a lack of responsibility for her own actions and those of the department for which was accountable, and who has also frequently demonstrated an inclination to bend and distort the obvious truth by evasion, misstatement and omission.
I don't know that Trump is any better, but I do know that Hillary doesn't make the cut.