Of course you can.  What you can't control is what other people send you. In my work, all of my sent and received emails are archived for 7 years and can be randomly viewed by members of our compliance team.  It doesn't matter how diligent I am about sending personal stuff from Gmail, the Chief Compliance Officer still knows that my wife calls me a bunny. It only takes her sending one personal note to the wrong account.

More fun with this -- at a previous job, during a routine SEC audit, the examiner requested all references to American Express, because it was a stock held in one of the portfolios and they just wanted to peak at the research emails pertaining to one of the investments.  What the examiner got was a high octane fight between the CEO and his wife, about charges on their personal Amex.

It wasn't stupid, as Doc Cleveland noted. It was a choice. She could have had her Benghazi and federal lawsuits over any personal mails done on public property or whatever other double-standards they would use to broil her, or she could have walled things off and had some control while she did her job. Note that it worked for the duration of her stint at SoS, and it only came up last summer, 2 1/2 years after she'd finished.

Susan Rice went on national TV the day after Benghazi and said something like "we think it was a protest over an anti-Muslim video that got hijacked by an extremist mob, but we're still investigating what happened" or "that's the best we know at the moment", and they roasted her over the coals for the next year proclaiming she lied and hid stuff when there were recordings and transcripts. Let me lay that out, because Chris Wallace still says she lied and said it wasn't Al Qaeda. And this is the bullshit that every Democrat has to deal with, but especially Hillary, and there's no fair and balanced press nor politicians who are going to vigorously vet and rebut wrong statements cause they can't even be bothered to debunk the continual stream of lies Trump puts out - they just give up. Give these fuckers access to Hillary's data? screw 'em. Here it is:

MS. RICE: Well, Jake, first of all, it’s important to know that there’s an FBI investigation that has begun and will take some time to be completed. That will tell us with certainty what transpired.

But our current best assessment, based on the information that we have at present, is that, in fact, what this began as, it was a spontaneous — not a premeditated — response to what had transpired in Cairo. In Cairo, as you know, a few hours earlier, there was a violent protest that was undertaken in reaction to this very offensive video that was disseminated.

We believe that folks in Benghazi, a small number of people came to the embassy to — or to the consulate, rather, to replicate the sort of challenge that was posed in Cairo. And then as that unfolded, it seems to have been hijacked, let us say, by some individual clusters of extremists who came with heavier weapons, weapons that as you know in — in the wake of the revolution in Libya are — are quite common and accessible. And it then evolved from there.

Full transcript.

CBS’s “Face the Nation”

MS. RICE:  So we’ll want to see the results of that [FBI] investigation to draw any definitive conclusions. But based on the best information we have to date, what our assessment is as of the present is in fact what began spontaneously in Benghazi as a reaction to what had transpired some hours earlier in Cairo where, of course, as you know, there was a violent protest outside of our embassy– –sparked by this hateful video. But soon after that spontaneous protest began outside of our consulate in Benghazi, we believe that it looks like extremist elements, individuals, joined in that– in that effort with heavy weapons of the sort that are, unfortunately, readily now available in Libya post-revolution. And that it spun from there into something much, much more violent.

BOB SCHIEFFER: But you do not agree with him that this was something that had been plotted out several months ago?

MS. RICE: We do not– we do not have information at present that leads us to conclude that this was premeditated or preplanned.

MR. SCHIEFFER: Do you agree or disagree with [the previous guest, the president of Libya’s general national congress] that al Qaeda had some part in this?

MS. RICE:  Well, we’ll have to find out that out. I mean I think it’s clear that there were extremist elements that joined in and escalated the violence. Whether they were al Qaeda affiliates, whether they were Libyan-based extremists or al Qaeda itself I think is one of the things we’ll have to determine.