I obviously haven't seen the emails. But we have news reports like this one: Hillary Clinton kept top-secret SIGINT emails on her home email server. Or this one: FBI Seizes Hillary Clintons Top Secret Emails
I’m not picking on you Mark.
I believe the media, who knows amazingly little about how classified documents and information are handled have been misleading their readers. The references you gave are typical and the conclusions you drew from them are perfectly rational.
But, unfortunately the MSM mostly get it wrong. The are guessing and reporting those guesses as truth.
But in the first article you referenced you will find a statement that I believe is correct. Here it is:
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“Two more emails in her private cache had classified State Department data in them.”
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That almost certainly true but is miles away from a posting in an email of a classified document. But illegal nevertheless. I believe The Hillary Circle will be found guilty of this in many instances but, of course, only in the court of public opinion.