This email proxy for Windows mail servers features an award-winning spam assassin, and can be configured to suit your needs. It supports unlimited domains and users, and comes with open-source components. It also has an interface for f-prot and ClamAV.
One of the standout features of this package is that it's built using fast running optimized C code (except for spam assassin). This means that it should run smoothly and efficiently on your system.
The software also includes a range of other useful features, such as the ability to forward emails to special spam boxes. Most values can be configured at both the global level (across all domains) and the individual user level. Additionally, the software supports F-prot AV and ClamAV.
Perhaps most impressively, the software also includes Spammap technology, which complements the spamdetection offered by Spam Assassin. This should help to improve your spam detection rates and provide better automated learning.
Overall, if you're looking for a comprehensive email proxy solution with a powerful spam detection engine, then this package could be worth considering. Its wide range of features and configurability make it a great option for businesses and organizations of all sizes.
Version 1.19: N/A