Abstract: An item delivery service capable of distributing items while maintaining anonymity between an exhibitor (vendor) and a successful bidder (purchaser) is provided. According to a delivery management system (when used for an escrow system) of the present invention, an exhibitor terminal 240 is notified only of information about a delivery service base in charge of an address of a successful bidder for delivery of an item. Accordingly, the item can be delivered up to the delivery service base even when the exhibitor does not know personal information such as the address and name of the successful bidder. On the other hand, a service base terminal 232 of the delivery service base where the item arrives is notified of personal information of the successful bidder.