Patent ID: 8717973

Claim:
A location information management method of managing a location of a terminal of a user having an e-mail address, the method comprising: extracting the e-mail address of the user and a terminal address of the terminal from an e-mail transmission request; retrieving the terminal address from an e-mail address and terminal address correspondence table by using the extracted e-mail address; registering the extracted terminal address in the e-mail address and terminal address correspondence table when the retrieved terminal address does not correspond to the extracted terminal address; retrieving a location of the terminal from a terminal address and location information correspondence table by using the terminal address registered in the e-mail address and terminal address correspondence table, the terminal address and location information correspondence table retaining the terminal address and the location information indicating a location of the terminal in relation to each other; transmitting e-mail requesting location information to the user who has issued an e-mail transmission request with a changed terminal address when the terminal address is changed in the e-mail address and terminal address correspondence table and the changed terminal address is not registered in the terminal address and location information correspondence table; and extracting location information from the e-mail which is transmitted by the user, on which the location information is entered, and which is to be registered in the terminal address and location information correspondence table.