Milter-greylist

Today I started using dnsrbl for whitelisting and, while it works,
it isn't perfect.

I really want to whitelist an IP if it shows up on the list, but
it seems I'm required to specify a dnsrbl response.

I want to say:
dnsrbl "DNSWL" list.dnswl.org
acl whitelist dnsrbl "DNSWL"

But instead I have:
dnsrbl "DNSWL2-0" list.dnswl.org 127.0.2.0
dnsrbl "DNSWL2-1" list.dnswl.org 127.0.2.1
dnsrbl "DNSWL2-2" list.dnswl.org 127.0.2.2
dnsrbl "DNSWL2-3" list.dnswl.org 127.0.2.3
dnsrbl "DNSWL3-0" list.dnswl.org 127.0.3.0
dnsrbl "DNSWL3-1" list.dnswl.org 127.0.3.1
dnsrbl "DNSWL3-2" list.dnswl.org 127.0.3.2
dnsrbl "DNSWL3-3" list.dnswl.org 127.0.3.3
dnsrbl "DNSWL4-0" list.dnswl.org 127.0.4.0
dnsrbl "DNSWL4-1" list.dnswl.org 127.0.4.1
dnsrbl "DNSWL4-2" list.dnswl.org 127.0.4.2
dnsrbl "DNSWL4-3" list.dnswl.org 127.0.4.3
dnsrbl "DNSWL5-0" list.dnswl.org 127.0.5.0
dnsrbl "DNSWL5-1" list.dnswl.org 127.0.5.1
dnsrbl "DNSWL5-2" list.dnswl.org 127.0.5.2
dnsrbl "DNSWL5-3" list.dnswl.org 127.0.5.3
dnsrbl "DNSWL6-0" list.dnswl.org 127.0.6.0
dnsrbl "DNSWL6-1" list.dnswl.org 127.0.6.1
dnsrbl "DNSWL6-2" list.dnswl.org 127.0.6.2
dnsrbl "DNSWL6-3" list.dnswl.org 127.0.6.3
dnsrbl "DNSWL7-0" list.dnswl.org 127.0.7.0
dnsrbl "DNSWL7-1" list.dnswl.org 127.0.7.1
dnsrbl "DNSWL7-2" list.dnswl.org 127.0.7.2
dnsrbl "DNSWL7-3" list.dnswl.org 127.0.7.3
dnsrbl "DNSWL8-0" list.dnswl.org 127.0.8.0
dnsrbl "DNSWL8-1" list.dnswl.org 127.0.8.1
dnsrbl "DNSWL8-2" list.dnswl.org 127.0.8.2
dnsrbl "DNSWL8-3" list.dnswl.org 127.0.8.3
dnsrbl "DNSWL9-0" list.dnswl.org 127.0.9.0
dnsrbl "DNSWL9-1" list.dnswl.org 127.0.9.1
dnsrbl "DNSWL9-2" list.dnswl.org 127.0.9.2
dnsrbl "DNSWL9-3" list.dnswl.org 127.0.9.3
dnsrbl "DNSWL10-0" list.dnswl.org 127.0.10.0
dnsrbl "DNSWL10-1" list.dnswl.org 127.0.10.1
dnsrbl "DNSWL10-2" list.dnswl.org 127.0.10.2
dnsrbl "DNSWL10-3" list.dnswl.org 127.0.10.3
dnsrbl "DNSWL11-0" list.dnswl.org 127.0.11.0 
dnsrbl "DNSWL11-1" list.dnswl.org 127.0.11.1
dnsrbl "DNSWL11-2" list.dnswl.org 127.0.11.2
dnsrbl "DNSWL11-3" list.dnswl.org 127.0.11.3
dnsrbl "DNSWL12-0" list.dnswl.org 127.0.12.0
dnsrbl "DNSWL12-1" list.dnswl.org 127.0.12.1
dnsrbl "DNSWL12-2" list.dnswl.org 127.0.12.2
dnsrbl "DNSWL12-3" list.dnswl.org 127.0.12.3
dnsrbl "DNSWL13-0" list.dnswl.org 127.0.13.0
dnsrbl "DNSWL13-1" list.dnswl.org 127.0.13.1
dnsrbl "DNSWL13-2" list.dnswl.org 127.0.13.2
dnsrbl "DNSWL13-3" list.dnswl.org 127.0.13.3
dnsrbl "DNSWL14-0" list.dnswl.org 127.0.14.0
dnsrbl "DNSWL14-1" list.dnswl.org 127.0.14.1
dnsrbl "DNSWL14-2" list.dnswl.org 127.0.14.2
dnsrbl "DNSWL14-3" list.dnswl.org 127.0.14.3
acl whitelist dnsrbl "DNSWL2-0"
acl whitelist dnsrbl "DNSWL2-1"
acl whitelist dnsrbl "DNSWL2-2"
acl whitelist dnsrbl "DNSWL2-3"
acl whitelist dnsrbl "DNSWL3-0"
acl whitelist dnsrbl "DNSWL3-1"
acl whitelist dnsrbl "DNSWL3-2"
acl whitelist dnsrbl "DNSWL3-3"
acl whitelist dnsrbl "DNSWL4-0"
acl whitelist dnsrbl "DNSWL4-1"
acl whitelist dnsrbl "DNSWL4-2"
acl whitelist dnsrbl "DNSWL4-3"
acl whitelist dnsrbl "DNSWL5-0"
acl whitelist dnsrbl "DNSWL5-1"
acl whitelist dnsrbl "DNSWL5-2"
acl whitelist dnsrbl "DNSWL5-3"
acl whitelist dnsrbl "DNSWL6-0"
acl whitelist dnsrbl "DNSWL6-1"
acl whitelist dnsrbl "DNSWL6-2"
acl whitelist dnsrbl "DNSWL6-3"
acl whitelist dnsrbl "DNSWL7-0"
acl whitelist dnsrbl "DNSWL7-1"
acl whitelist dnsrbl "DNSWL7-2"
acl whitelist dnsrbl "DNSWL7-3"
acl whitelist dnsrbl "DNSWL8-0"
acl whitelist dnsrbl "DNSWL8-1"
acl whitelist dnsrbl "DNSWL8-2"
acl whitelist dnsrbl "DNSWL8-3"
acl whitelist dnsrbl "DNSWL9-0"
acl whitelist dnsrbl "DNSWL9-1"
acl whitelist dnsrbl "DNSWL9-2"
acl whitelist dnsrbl "DNSWL9-3"
acl whitelist dnsrbl "DNSWL10-0"
acl whitelist dnsrbl "DNSWL10-1"
acl whitelist dnsrbl "DNSWL10-2"
acl whitelist dnsrbl "DNSWL10-3"
acl whitelist dnsrbl "DNSWL11-0"
acl whitelist dnsrbl "DNSWL11-1"
acl whitelist dnsrbl "DNSWL11-2"
acl whitelist dnsrbl "DNSWL11-3"
acl whitelist dnsrbl "DNSWL12-0"
acl whitelist dnsrbl "DNSWL12-1"
acl whitelist dnsrbl "DNSWL12-2"
acl whitelist dnsrbl "DNSWL12-3"
acl whitelist dnsrbl "DNSWL13-0"
acl whitelist dnsrbl "DNSWL13-1"
acl whitelist dnsrbl "DNSWL13-2"
acl whitelist dnsrbl "DNSWL13-3"
acl whitelist dnsrbl "DNSWL14-0"
acl whitelist dnsrbl "DNSWL14-1"
acl whitelist dnsrbl "DNSWL14-2"
acl whitelist dnsrbl "DNSWL14-3"