Spam Filter for ISPs 2.1.1.395

Spam Filter for ISPs is designed to be a front-end for your incoming SMTP server. It receives all emails addressed to your domain(s) and checks if the sender is listed in one or multiple DNS-based block lists; if not, the email is passed on to your main SMTP server. The administrator can configure which block lists to use, set allowed domains, filter by keyword and maintain a blacklist as well. SpamFilter runs on Windows and Linux systems, both distributions are included in the download. The product is fully functional, it has no expiration dates, no nag boxes. You may evaluate as long as you wish.

Not intended for home users.