The present invention provides a communications client program and an associated transfer server for onymous and secure communications over the internet. The communications client program is used for electronically sending and receiving mail items and for conducting realtime audio and video communications in a secure manner. A mail item is any item of correspondence that bears an addressee's street address (i.e. number, street, suburb, state and post code) or an advertising item that does not necessarily bear an addressee, but includes nominations for preferred destinations.