$TTL 86400      ; 1 day
1.168.192.in-addr.arpa.  IN SOA  ns1.DOMAIN.CO.NZ. support@egressive.com. (
                                2007052001 ; serial
                                604800     ; refresh (1 week)
                                86400      ; retry (1 day)
                                2419200    ; expire (4 weeks)
                                86400      ; minimum (1 day)
                                )
                        NS      ns1.DOMAIN.CO.NZ.
$ORIGIN 8.168.192.in-addr.arpa.
1                       PTR     mail.DOMAIN.CO.NZ.