BotDetect ASP CAPTCHA is a website security component designed to protect your registration and other online forms from automated spam submissions. It generates CAPTCHA images that easily tell spam bots and humans apart. Sound support.
Spam Bot Blocker is a free utility that obfuscated (scrambles) your email address so that you can post it to your website with less risk of it being harvested by spam bots.
For the REVOLUTIONARY FLASH TXT GUESTBOOK SYSTEM, you need nothing but a TEXT FILE to have visitors of your leave a comment with their name and email. What's so revolutionary? No need for XML or MYSQL database to store the submitted posts/comments. D
Get the email you want and nothing else. Anti Spam Controls quickly and easily helps you stop spam from polluting your inbox with advanced rule-based and list based filtering
SpamButcher is an advanced anti-spam filter. Its spam blocker can stop 98% of spam. Every few minutes it checks for new messages in your inbox. If it finds any spam, it's moved to a holding area for later examination.
GOLB is an advanced turnkey guestbook for any website with Perl 5.8+ interpreter. Your visitors can post an illustrated message, while you are able to comment-it back. All being greatly configurable. Easy installation. Freeware and Open-Source.
Spam Blocker blocks unwanted messages on the mail server. Saves traffic and delivers from viewing annoying e-mail advertising. Spam Blocker works with several mailboxes and allows configuring user setting for blocking spam.