There is absolutely no way she or anyone else that worked woth here didnt know your needed to archive emails. Subpoenas happened regularly, and everyone knew Emails = record. Years later after I left I landed a contract with a government contractor to recover thse tapes, against federal lawsuits, emails are records and the courts want them. Par for the course. I'd argue the Clinton whitehouse was the first administration to truly face electronic records retention effects with the courts. Nixon maybe being the first with audio tapes, the clintons got email Subpeonas.
So when I hear she was running her own email server and staying outside federal records retention requirements, I both nodded knowingly that I would expect nothing less from the wife of a man that learned first hand: keep no records, and then shook my head ruefully knowingly why she did it:
Keep no records.
When public leaders avoid record keeping requirements, this prevents public scrutiny, and that means they no longer work for you because they aren't accountable to you. Maybe you agree with her, but you'll never know what she did in your name. Hillary knew what she was doing. I have no doubt of this, as I said I would expect nothing less. I would be shocked if she didn't do this. Stunned really. I'm still paranoid about what I put in written form (text, email, etc.) to this day.
This was calculated, to keep her unaccountable and off the record.