| 摘要 |
PROBLEM TO BE SOLVED: To solve such a problem that, even when an information provider transmits electronic mail containing various kinds of information to a user, the transmission of the electronic mail may be failed occasionally because of a filtering function implemented by the provider. SOLUTION: A sorting section 116 sorts a plurality of mail addresses acquired from a database into a plurality of groups for each of domain names contained in the mail addresses. A calculation section 118 calculates, for each of the groups in which the mail addresses are sorted, an error occurrence value corresponding to the number of associated mail addresses within the group. On the basis of the calculated error occurrence value, a specification section 120 specifies a domain name of the electronic mail to be subjected to subdivided transmission, from among the domain names contained, respectively, in the mail addresses failed in transmission. In the case that the specified domain name is included in the acquired mail addresses, a transmission instruction section 110 instructs a mail server 200 to transmit electronic mail destined to the plurality of mail addresses containing such domain names while subdividing the transmission. COPYRIGHT: (C)2009,JPO&INPIT
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