2005 Volume 9 Issue 1 Pages 45-53
Recently, e-mail plays a very important role in the internet community. However, spam mails have become very big problem now. Moreover, a computer virus sends out a large amount of e-mails randomly due to Self-proliferation. In order to deal with these problems, we set up mail scanning softwares to quarantine spam and virus mails. However, there's some possibility to quarantine normal emails by mistake, and detection of those cases were operated with system operator's human eyes. It gives them heavy load. For a solution of this problem, we developed three systems; 1)The system which sends lists of quarantined e-mail to recipients automatically, and recipients can retrieve quarantined e-mails via operation on a web browser. 2)The system which helps us to define spam's filter efficiently. 3)The system which can reject receiving e-mails whose recipient's addresses do not exist and receive lots of spam mails at the gateway of Kanazawa University. We make these systems cooperate and operate them, and then we can reduce the operator's load and user's loss caused by spam and virus mails. In this paper, we describe about the details of those the systems.