There is no law against it that I am aware of. There is a type of lawsuit for invasion of privacy. Just publishing your address in of itself is probably not an invasion of privacy. These days, it is not difficult to get someone's address. If the email contained information that might tend to induce people to violence against you or your girlfriend, or that slandered you, you may, in theory, have a suit. However, if the person sending the email has no property, then you couldn't collect whatever damages you were able to prove.
Answered on Nov 07th, 2012 at 9:25 PM