Junk mail, or "spam," on the Internet is difficult to intercept and stop.  The only fool-proof method is to have the listserv programmed to require approval from an editor before a message is distributed.  Given the small amount of spam that we receive, it seems to me that clicking on the delete icon or trash can is simpler than organizing a team of editors.

K. Austin Kerr
Professor of History, Ohio State University
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http://people.history.ohio-state.edu/kerr.htm