SpamFireWall - to reduce a CPU usage.
SpamFireWall allows blocking the most active spam bots
before they get access to website. It prevents loading
of pages of web site by spam bots - so your server
doesn't need to perform all scripts on these pages.
Anti-Spam Logs - to control Anti-Spam service.
You will have detailed statistics of all entering comments
and logins. You can always be sure that there are no errors.
Personal Blacklists - to block users by IP's/email's/countries.
Personal balcklists are very flexible and powerful tool, you can block or
allow IP address, email, mask or whole country.