System for sending, receiving and displaying message, method for sending, receiving and displaying message and computer readable storage medium storing program for that method

Disclosed are a system for transmitting, receiving, and posting messages, a method thereof, and a computer readable recording medium for recording a program for realizing the method in a computer. When a service subscriber generates a message and transmits the message, a first record and a second record are generated based on the transmitted message, the generated first and second messages are respectively stored and then transmitted to user terminals of an addresser and an addressee, and the user terminals display the transmitted message contents together with previously transmitted related message contents based on record fields. In this instance, the addressee is restricted to be a service subscriber. Therefore, the relationship between the transmitted message and the received message is easily detected, the addresser and the addressee conveniently manage the first and second records respectively, and the service is safe from spam mail or viruses since the messages are transmitted and received only between service subscribers.