TRANSMISSION DESTINATION INFORMATION ACQUISITION SYSTEM, TRANSMISSION DESTINATION INFORMATION ACQUISITION METHOD, COMPUTER PROGRAM AND DATA STRUCTURE

PROBLEM TO BE SOLVED: To provide a transmission destination information acquisition system, etc. which can acquire transmission destination information used when data is transmitted and alternative transmission destination information used when the data transmission is failed without placing a burden on an operator.SOLUTION: A transmission destination information acquisition system 1 includes a search part 7 which searches for, in accordance with a search request 6 including a user identifier 4, registration information 5 in which transmission destination information 3 related to a transmission destination to which a data transmission part 2 can transmit data and the user identifier 4 for identifying a user who transmits the data to the transmission destination corresponding to the transmission destination information 3 are associated with each other and registered. The registration information 5 sets the transmission destination information 3 as entry and includes the user identifier 4 in an attribute of the transmission destination information 3. The search part 7 acquires the specific transmission destination information 3 associated with the specific user identifier 4 by searching for the registration information 5 using the specific user identifier 4 included in the attribute of the transmission destination information 3 as a searching keyword.