I wonder how many other high ranking politicians and security officials quickly and quietly dismantled their own private server systems after Hillary started getting heat? I highly doubt she was the only one using such a setup.
That's a very good question. I guess anybody not using a .gov address would be using a private email account or a private server. Most people in the corporate world have a work address and a private address. It's probably the same in government except for a very small number who play by their own set of rules. It seems like more of these cases would be uncovered if they're out there. You're probably right to say Hillary wasn't the only one, but it doesn't appear to be a widespread practice.