Panther server Firewall and Postfix RBL lookup error

[mac93]

Once I start my firewall, I got error message in mail.log, is this relate to dns lookup? which port I shoud open to get rid of this error message

“warning: 246.213.91.24.relays.ordb.org: RBL lookup error: Name service error for name=246.213.91.24.relays.ordb.org type=A: Host not found, try again”

Thanks

[mac93]

my mac os x server does not provide dns service, no 53 port listening before I set up firewall on server, it worked fine. I tried your way, it is the same error, here is my rules:

01000 0 0 allow ip from any to any via lo0
01020 0 0 deny ip from 224.0.0.0/4 to any
01030 0 0 deny tcp from any to 224.0.0.0/4
12300 0 0 allow icmp from any to any in icmptype 0
12301 0 0 allow tcp from any to any 110 in
12302 0 0 allow udp from any to any 110 in
12303 0 0 allow tcp from any to any 25 in
12304 0 0 allow udp from any to any 25 in
12305 0 0 allow tcp from any to any 143 in
12306 0 0 allow tcp from any to any 80 in
12307 0 0 allow tcp from any to any 53 in
12308 0 0 allow udp from any to any 53 in
12309 0 0 allow tcp from any to any 16080 in
63200 0 0 deny icmp from any to any in icmptype 0
63300 0 0 deny igmp from any to any in
65000 0 0 deny tcp from any to any in setup
65001 0 0 deny udp from any to any in
65535 2520 443215 allow ip from any to any

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