A method for reducing unsolicited e-mails includes receiving an e-mail message from a sender, storing the e-mail message within a holding unit, and sending a confirmation response request e-mail to the sender in response to the e-mail message from the sender. The confirmation response request e-mail may include a request for at least one confirmation code from the sender according to at least one calculation type/method specified in the confirmation response request e-mail. The method may also include receiving a confirmation e-mail from the sender in response to the confirmation response request e-mail, determining whether the confirmation e-mail includes a code correctly computed according the at least one confirmation code calculation type, and performing an action with respect to the e-mail message based upon the confirmation e-mail. The sender's support of the method creates an explicit agreement regarding legal jurisdiction governing any disputes arising out of the e-mail.