Hi, If your dnsbl list is too long, grossd will segfault. http://home.comcast.net/~jpiszcz/20100122/grossd.conf.too.long.txt However, this works http://home.comcast.net/~jpiszcz/20100122/grossd.conf.working.txt Output (-DD -d) http://home.comcast.net/~jpiszcz/20100122/segfault_output.txt Justin.