DIRECT PUSH EMAIL SERVICE PROVIDING METHOD, AN EMAIL CLIENT THEREOF, AND AN EMAIL SERVER THEREOF CAPABLE OF OMITTING THAT THE EMAIL CLIENT RECEIVES A PACKET FOR A DISCONNECTION BETWEEN THE CLIENT AND THE SERVER

摘要

PURPOSE: A direct push email service providing method, an email client thereof, and an email server thereof are provided to prevent the power consumption of the email client and the email server by omitting that the email server transmits a packet for a disconnection between the email server and the client.;CONSTITUTION: An email client establishes a TCP connection for providing a direct push email service with an email server (802). The email client transmits an HTTP request message including a ping command to the server and receives an HTTP response message from the server (804,806). If the HTTP response message indicates that there is no email arrived in the server, the client disconnects the TCP connection (808,812).;COPYRIGHT KIPO 2013;[Reference numerals] (800) Time of transmitting ping command; (802) Establish connection between email server and TCP; (804) Transmit ping command from email server; (806) Receive replay message from email server; (808) Is there received email in email server?; (810) Receive email data from email server; (812) Cut the connection of TCP; (AA) Start; (BB,DD) No; (CC,EE) Yes