At the time of receiving an e-mail, a music melody correlated with a respective e-mail sender is automatically reproduced. The system and the method of the invention comprising the steps of: downloading an e-mail addressed to a respective user from a mail server; extracting a domain name from a mail address of an e-mail sender contained in the downloaded e-mail; and reproducing a music file which is registered in advance as correlated with the domain name extracted, thereby enabling the respective user to recognize who is the sender of the e-mail while downloading it from the mail server.