A method is disclosed for managing communication processes (N1-N4) between internal participants (A, B, C) of an internal communication network on the one hand and external participants (E) on the other hand. First a list is set up in an internal communication network that contains incoming and outgoing communication activities between the internal participants and at least one external participant as a virtual mailbox. This virtual mailbox is assigned to the at least one external participant and is set up to be invisible or inaccessible to the at least one external participant. Communications activity between an internal participant and the external participant are recognized as being associated with the external participant based upon identification that has been assigned to the external participant and can be obtained from the communication activity. Each communication activity that has been recognized as being associated with the external participant is deposited in the virtual mailbox.