Patent ID: 7818381

Claim:
A system for transmitting, receiving and posting messages between a plurality of user terminals via a network, the system comprising: a message client to transmit and to receive a message among a plurality of users subscribed to a service; an application server to generate a first record and a second record associated with the message based on contents of the message, to store the first record and the second record corresponding to the transmitted message, and to transmit the first record and the second record to the message client according to a request by the message client; and a user database to store the first record and the second record, wherein the first record and the second record comprise a service user identification (ID), a message identification (ID), a corresponding message identification (ID), a related message package to which the message belongs, a message position in the message package, an addresser identification (ID), an addressee identification (ID), a message title, and a record field, and wherein the message client displays the transmitted message together with a message previously being transmitted from the message client by referring to the record field.