SpamTestBuddy

SpamTestBuddy is a useful software tool that provides a simple and lightweight solution for multiple-input spam scoring. It is a standalone project and can work with simple procmail rules without the need for any root access or daemons. One of the standout features it brings is built-in support for simple DNS checks, including DNSBL queries. Moreover, it can also scan headers from existing filters like SpamProbe, QSF, and DSPAM already in use, thus bringing them together. The software configuration is flexible and is easy to edit in a human-readable file where various tests can be added or removed.

Although the software does not look to replace SpamAssassin as a powerful solution, it makes use of the features you already have with the filters in place. It helps to unite all the different scores to make a decision with thorough testing to ensure that the filters are operating as they should. SpamTestBuddy has been tested across a host of operating systems such as Linux, FreeBSD, and NetBSD.

SpamTestBuddy has some compelling uses. For instance, if you have several filters in place that generate a numeric probability or score, you can quickly combine them using +TestHeaderFloat and make a decision based on the total floating point score. It also allows you to query multiple real-time lists for fresh data on known spam sources, abusive networks, and more. Furthermore, it's an excellent secondary filter in cases where it can interpret scores from other software that were possibly misclassified as spam. Lastly, it can extract the correct IP address by applying SkipReceived to pick out the correct IP address by using a list of networks.

In a recent update, the configuration file received an enhancement for ease of use, and DNSBL support was added. SpamTestBuddy is highly recommended for those seeking a lightweight and seamless spam scoring tool.