To provide an information distribution device capable of improving convenience for a receiving person by adjusting the quantity of information to be distributed to the receiving person according to the desire of the receiving person.

Respective users can select one of a plurality of stages of the distribution ranks including the designation of aggregation degree concerning a mail to be distributed from respective advertisers. The distribution rank selected by the user is stored in a mail server. When a distribution rank is designated to the mail of the advertiser by the user being the receiving person of the mail when the distribution request of a mail is given from the advertiser, the mail server aggregates the contents of the mail according to the aggregation degree designation of the designated rank and transmits them to the user. Furthermore, the evaluation of the user and questionnaire information are returned to the respective advertisers via the mail server.