Which is
also irrelevant. Unless
you are the originator of that information, you don't have the authority to make that determination. Which Hillary knows, which is why she (lied, and) told the FBI she didn't know what a classification marking was.
Oh, and I can't help but notice that you chose to completely ignore:
Classified information remains classified even after you strip out the portion markings, headers, etc. All that it means that this information wasn't marked is that it shows willful intent to place classified information on unclassified systems, and the person who put it there had to choose to put the information in there in a different format than they had received it - sans marks.
...For someone who has handled classified information for any period of time, for someone who was an original classification authority to claim that they didn't know what (C) meant on a document is like a State Department of Motor Vehicles Head with a 30 year history of driving trying to argue that he shouldn't get a ticket for running an intersection, because he didn't know that Red Light means Stop. Not only did Hillary Clinton receive training on what that means, she signed a legally binding life-long contract with the United States Government stating that she did know what it means, and had that reinforced to her constantly throughout her use of classified information, from the Senate to the SECSTATE position.
You tell us, Iguana. Is Clinton a liar and a felon? Or is she just utterly incompetent and unfit to the most basic of tasks of government?