> I know that I could write custom rules but I thought that maybe > spamassassin is mature enough to detect this german crap without any > additional rules.
SA isn't magic, quite. It largely depends on having rules to catch spams. We have lots of people writing rules for English spams, but so far nobody has volunteered to write many German rules. Without rules, all you have basically is bayes and net tests. That will catch a lot of things, but it won't catch the initial flow of a new spam. Loren