JZ wrote: > tcp 0 0 216.93.188.184:25 0.0.0.0:* LISTEN > 7910/xinetd Port 25 is handled by the xinetd. There may be a wrapper around it. What program will be started on connetion to port 25? See the /etc/xinet.d/ folder to find it out. You may also try to send mail to 216.93.188.184 instead of localhost Thomas