I think the starting point is to not send your work emails through your own server at home.
It feels a bit more like an access to information issue in many respects. The question of emails has been challenging, because of course we want government, the bureaucracy, and others to adopt efficient means of communication. I have launched the occasional access to information request, and if you ask for all records, you get emails as well. There was a time when those revealed a lot, of course subject to all the various exceptions, and those exceptions also removed a lot. Nevertheless, you could often read between the lines on quite a lot because they revealed a fair amount.
Once certain departments, in my experience, found that people were asking for that data, one of the things that started happening was that people stopped communicating via email and started finding other ways that fell outside of that. Part of the discussion on Clinton has been revelations about her discussions with, I think, Colin Powell, and there has been talk about how you can structure a communication system that falls outside of the act.
I think in some ways we've had some of the same kinds of things take place here with people either engaging in discussions that they ensure don't take place by email—the so-called PIN discussions through BlackBerry—or sometimes even doing direct messaging through Twitter. They are finding mechanisms that may fall outside of that system.
My response is that, by and large, where the discussions fall within the discussions of government and policy and the like, and the act applies, the solution isn't to try to find ways to get around those rules. The solution is to try to ensure that the legislation is sufficiently robust to cover them.