Hi Nuno > Well we have already tried a couple of methods but none of them worked so > far, including DNS blacklists, spamassassin and a simple words blacklisting. > I've run out of ideas. Training spamassassin would probably work, but I'm > not sure if it wouldn't cause disturbs in the mail server.
Seems like adding 'poker' to the blacklist did the trick, for now. Thanks :)