To provide a file store-and-forward system for which the registration with a table and the management of a file name itself are unnecessary.

In a transfer file group management table TB3 in advance, as the information for judging whether or not an appropriately received file belongs to a transfer file group (group), reception file group information has been defined (registered), and further, if the transfer destination, the transfer method or the like for the file belonging to a group, that is, transmission file group information has been defined (registered), a collection and delivery control part 11 determines whether or not the file that is appropriately received belongs to the group, depending on the reception file group information, and stores the file that has been determined to belong to the group, in a file storage part 13, and a distribution control part 12, when transferring the file stored in the file storage part 13, executes transmission, according to the group, on the basis of the transmission file group information.