Is the solution to spam black and white? Summary: CNET's Brian Cooley looks at a new antispam product for enterprise users that involves a combination of both black and white listing techniques in the battle against spam. March 21, 2003 -- 17:24 GMT (09:24 PST) Loading... Please wait. Topic: Security Kick off your day with ZDNet's daily email newsletter. It's the freshest tech news and opinion, served hot. Get it.