I use the following spamd flags: -d -x -q -r pidfile The -x is for ignoring userpref files. You are using -Q which is similar to -q, both of which are supposed to be used with -x. This is according to spamd's man file.
So my suggestion would be try adding -x to your spamd flags. Also I don't know if -c is used with sql. -Dan
