On 2010-04-18 8:10 AM, Marcus Frischherz wrote: > The spam gets filtered alright by spamassassin, and then it bounces, but > it doesn't bounce to the actual real originator, but to the local user. > So in this way the spammer manages to deliver the spam to the addrassee, > although it is filtered my spamassassin, abusing the bounce concept.
That is your problem. Either set up your anti-spam filter as a pre-queue filter, so you can smtp reject it, rather than accept>bounce it, or do *not* bounce it but deliver it tagged and/or to a spam folder. What you are enagging in is called backscatter, and can eventually get you blacklisted if your server is high enough volume: http://www.postfix.org/BACKSCATTER_README.html -- Best regards, Charles
