j0# ps aux | grep exim
mail 15174 0.0 1.1 7596 2752 ?? Is 7:46PM 0:00.09 /usr/sbin/exim -bd -q1h -oP /var/run/exim.pid
root 13427 0.0 0.3 3156 724 p0- T 6:12PM 0:00.00 tail -F /var/log/exim/mainlog
j0# lsof -i:25
lsof: Command not found.
j0# ipfw show | grep ":25"
ipfw: getsockopt(IP_FW_GET): Protocol not available
tail -F /var/log/exim/mainlog