Except having his emails posted to the media. That is more tawdry than the emails themselves, and criminal too, I would think.
I think it depends. If he wrote and sent them on government-owned computers, it may be law that the emails belong to the public. In that case, Sanford has no one to blame but himself. I don’t know that to be a fact, though — looks like there’s a lot more to this story that we’ll be hearing about for the next three weeks.