Cisco tells spam victims to reply with abusive emails Humor/Amusing6/5/2000; 7:11:48 AM April 4, 2000: At first I thought this might be some sort of late April Fool's joke.

"Spam is usually harmless, but it can be a nuisance, taking up time and storage space. The solution is to flame the perpetrators by sending them abusive messages, or to reply by dumping a very large and useless file on their Web server."
Then I realized... of COURSE Cisco wants you to retaliate by sending as much data as possible. Then you'll need to buy more and faster routers. Sometimes I can be so dense!

BTW, don't try that response, or you may find your account being shut down.