Information gathering system, terminal unit, program for information gathering, and program for a terminal

An information gathering system comprising:

• a host unit in communication with a network and including a memory unit, the memory unit having a plurality of data storage areas, each of the data storage areas being respectively associated with one of a plurality of memory addresses;
• and
• a terminal unit in communication with the network, wherein
• the host unit
• creates e-mail having an attached file including reply requesting information and one or more sorts of identification information, wherein
• the identification information is associated with one of the plurality of memory addresses in accordance with a predetermined correspondence rule, and
• the reply requesting information is information for requesting reply information from an information gathering candidate,
• encrypts at least the reply requesting information, and
• sends the e-mail having the attached file with the reply requesting information that has been encrypted to the network;
• the terminal unit
• receives the e-mail including the attached file with the reply requesting information that has been encrypted from the network,
• decrypts the e-mail including the attached file with the reply requesting information that has been encrypted,
• displays the reply requesting information on the terminal unit in a state in which the reply information can be added to the attached file,
• encrypts at least the reply information of the attached file that is displayed on the monitor of the terminal unit upon receiving a command to close display of the reply requesting information to which the reply information has been added, immediately after closing display of the reply requesting information;
• and
• sends the e-mail with the attached file including the reply information that has been encrypted to the network;
• and
• the host unit
• receives the e-mail having the attached file including the reply information that has been encrypted from the network, and
• decrypts and stores the reply information included in the attached file that is received by the host unit in one of the data storage areas so that a memory address of the one of the data storage areas corresponds to a memory address associated with the identification information of the e-mail that is received by the host unit.