As one person, working at a Los Angeles law firm, who sent hate mail to Michelle Malkin found out.
La Shawn Barber has made it clear that she'll take similar actions against her chronic hate mailers, and has miraculously found out that one offender has stopped sending the emails.
I just delete these types of emails unless some kind of a threat is made. It is just not worth my time and effort to try and chase down the unhinged moonbats.