use the VBounce plugin. see faq
Geert Batsleer writes: > Hi, > > over the last couple of days I seem to get more and more spam wich looks > like a bounced email with subjects like "MAILER DAEMON ... " and other > variations, where the emails are bounced from mostly russian servers and > where my email address has been spoofed so that I recieve the bounced mail > instead of the original sender. > > Any idea how I can fix this via SA? I'm running Postfix so maybe I can > also fix it with header_checks or procmail but SA seems a more elegant > way. > > Kind regards, > > Geert > > PS spamassassin-3.2.4-1.el4.rf