Well its not a spam generator, but it is still useful in the pollution of spammers address collectors.
The Address Book generator will generate random addresses and other garbage when ever viewed. The code is written
in 'C' and is designed to be fast and tight on all webservers.
Version 1.0 is available here: addressbook.tar.gz
The demonstration is configured using the defaults and adding the following line to Apache 1.3.x for the configuration:
RewriteRule ^/addressbook/ /path/to/binary/cgi-bin/pollute.cgi [T=application/x-httpd-cgi,L]