How to start IP Filter in DNS server

I am using Solaris 10 x86 05/08.
In this server sun Java Messaging server and DNS server is running.
I want to start IP Filter to this server. I can allow allth ports that nessosary to Mail server.But although i enable the TCP/UDP 53 port to DNS we cant resolve the domain names.
Can any one help please...

# Block any packets which are too short to be real
block in log quick all with short
# Allow all traffic on loop-back
pass in quick on lo0 all
pass out quick on lo0 all
# Allow ICMP
pass in quick proto icmp all keep state
pass out quick proto icmp all keep state
# Allow DNS traffic
pass in quick proto tcp/udp from any to any port = domain keep state
pass out quick proto tcp/udp from any to any port = domain keep state
pass in quick proto tcp/udp from any to any port = domain with oow
pass out quick proto tcp/udp from any to any port = domain with oow
blobk return-icmp(net-unr) in proto udp all
block in log
block out log

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How to start IP Filter in DNS server

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