Patent attributes
A method and system are provided to transmit a message from a transmitting client to a primary receiving client via a server, which is also connected to a secondary receiving client. A message is sent from the transmitting client to the server. The message includes a first header indicative of an address of the primary receiving client and a second header indicative of at least one address of the secondary receiving client and the secondary header being indicative of only a single one of the at least one address. The message is then transmitted from the server to the primary receiving client and from the server to the secondary receiving client.