When I send mail from Outlook it always contains my computers name and my local ip address in the form 'Received from [xxxxxxxxx] [zzz.zzz.zzz.zzz]' where x is my desktop name and z is my desktop ip. I am not trying to be anonymous I have no problem sending all routing info. and email address info. in my header but the detailed 'Received from' info of my local computer is a huge security risk i.m.o. So does anyone know how to prevent outlook sending my local computers ip address?