LinuxSecurity: "Vipul's Razor is written in Perl and -- as long as you've got a working Perl install -- is very easy to set up. It took me less than
five minutes to download and install Vipul's Razor on a Slackware 8.0 machine, and a few minutes more to configure a .procmail
script to mark spam with a distinguishing subject line. It's also possible to leave the subject alone but add a "Warning" header,
or to simply file the offending email in a special mailbox."
December 14, 2001