how to sendmail from a box in DMZ to outside firewall ----------------------------------------------------- open the DMZ pinholes on firewall: TCP 192.168.2.2 137.111.20.7 25 # sendmail TCP 192.168.2.2 137.111.66.5 53 # DNS lookup TCP 192.168.2.2 137.111.201.5 53 # DNS lookup igloo is a box in DMZ: [root@igloo root]# cat /etc/resolv.conf search its.unimacq.edu.au unimacq.edu.au nameserver 137.111.66.5 nameserver 137.111.201.5 |