Bozo Filter
A "bozo filter" is the screening property of some client email programs that allows the end-user to automatically pre-evaluate and discard email sent by certain individuals, typically those whose messages routinely fail to interest the recipient.
InterScan eManager differs from a simple "bozo filter" in several ways. Messages are blocked before the SMTP server, and on the behalf of multiple individuals. InterScan eManager also prevents user's mail boxes from filling up with spam, something client-side products can't do. Blocked mail is not processed by the SMTP server and is thus not delivered.
Most Bozo filters enact their rules only after the email has been delivered to the client. Even if the message is deleted, delivering it still requires the use of the SMTP server, thus consuming network bandwidth, and occupying client (and perhaps server) hard drive space for at least some period of time. InterScan eManager eliminates these problems.
See also: