Patent ID: 8095608

Claim:
An email wrong transmission preventing apparatus that prevents wrong transmission of email, the apparatus comprising: a computer that includes a computer processor configured to execute: storing transmission logs in a computer readable storage medium, each transmission log including a sender, a destination, and a transmission date/time of a planned outgoing email transferred to a transmission server; acquiring a planned outgoing email transmitted from a client and storing the planned outgoing email; acquiring the transmission logs , calculating a memory ratio of each address of emails in the acquired transmission logs using a numeric expression indicating a model in which values decline in accordance with a number of elapsed days, and creating a user weight list recording a weight of each destination, which is obtained by compiling the calculated memory ratios of the emails transmitted from day of the transmission date of the planned outgoing email to last day of a predetermined period; specifying a weight of a destination of the planned outgoing email from the weight list, comparing the specified weight of the destination with a predetermined threshold, and determining that the destination is not reliable when the specified weight is equal to or smaller than the threshold; outputting information related to a destination address check of the planned outgoing email and receiving an input of “checked” for the destination address when determined that the destination address of the planned outgoing email is not reliable; transferring the planned outgoing email to the transmission server after receiving the input of “checked”; and storing a transmission log of the transferred planned outgoing email.