Date: 2008may21 OS: Linux Q. Where is the Spam Assassin config (configuration) file? A. On RedHat/Fedora/CentOS, there are a bunch of config files in /usr/share/spamassassin but the files you probably want are /etc/mail/spamassassin/local.cf and /etc/sysconfig/spamassassin Updates to the rules go in: /var/lib/spamassassin/<version>/updates_spamassassin_org/72_active.cf You may also have a /usr/local/bin/spamchk that has some local settings.