Abstract
Spam mail management in universities differs from that in enterprises having uniform and strict network policy, and requires the guarantee of a free policy of mail environment. In this paper, we report on the findings from the operation experiment of adopted spam mail filtering based on the volunteer application of users to the management. In particular, management of the electronic mail (email) delivery delay problem is picked up under the consideration of the state of the email usage in our university. We also discuss an ideal method of the spam mail filtering in universities and in research institutes under the free policy of mail environment.
