To provide a customer calling system for reducing store side labor by easily calling a customer in a stand-by state, and for achieving the management of a store by proxy at low cost without making it necessary for the store to manage the personal information of a specific customer.

This customer calling system is provided with a mail content management means 43 for identifying the transmission origin of electronic mail received by a mail receiving means 41, and for, when the identified transmission origin is electronic mail from a customer 3, temporarily storing the transmission origin address and calling number of the customer 3 in a database 46, and for, when the identified transmission origin is electronic mail from the store 3, discriminating whether or not the matched calling number is stored in the database 46 based on the calling number and a mail transmitting means 42 for, when the matched calling number is discriminated, transmitting predetermined calling information to the transmission origin address of the pertinent customer 3.