FIELD: computer engineering, dynamic routing of messages in local-area network. SUBSTANCE: message, which is stored by a user application 24, is sent to queue control unit 25, which forwards information about destination address and e-mail service type into message transmission routing detection unit 26. Said routing detection unit 26 controls routing table 27 by means of its alteration according requests from control unit 28 and outputs information about destination network node into queue control unit 25. Communication unit 29 receives and transmits e-mail messages and data for building routing table. EFFECT: increased reliability of message transmission due to possibility of required e-mail services without special-purpose directory control device. 4 cl, 3 dwg
