Please include details in the message body. What you have tried? Settings in dnews.conf or other files, contents of filter.dat etc. What specifically isn't working?
The instructions for configuring the anti-spam settings are here - http://www.netwinsite.com/dnews/spam.htm Based on your subject, it sounds like you didn't add (to dnews.conf) - spam_stop true Spam tests are off by default. Then tellnews reload and the filter.dat rules should start working. - Roydon L.
