Being Bullied At Work by e-mail

I don't enjoy commenting on this one bit because it irks me considerably but. . . . is it me or are we getting bullied more and more at work.
From a personal point of view, I seem to be getting a considerable number of e-mails now which are threatening and bullying in tone. Obviously, the sender in most cases does not fully research their facts before sending the mail and invariably the receiver ends up being totally outraged.
Most of the senders would not have the guts to talk to you in the same manner face to face because they are mainly small minded people hiding behind their own insecurity. However, it is very unpleasant and demotivating to receive these unwarranted mails and most of all it creates an aggression which should not be in the workplace.
Don't you just want to go and punch these small minded unctuous cretins on the nose !

Ah, the evil of e-mails . . . let's get back to using the telephone more for gods sake !