If in a public office, I would not Email anything.
If I had any asperations for public office, I would stop all e-mails now. Thank God I have no desire, but if I did I would do all my dealings by phone the old fashioned way. Of course their are recording devices for that now, but with e-mail it is definitely forever. Either that or throw away the computer. I just think it is sad that people have to cover up past deeds because the media puts a spin on all converstions.