I see you inquire a couple of spamhaus lists while you actually only need one, the "Zen" list.:
From http://www.spamhaus.org/zen/
Quote:
zen.spamhaus.org
ZEN is the combination of all Spamhaus IP-based DNSBLs into one single powerful and comprehensive blocklist to make querying faster and simpler. It contains the SBL, SBLCSS, XBL and PBL blocklists.
zen.spamhaus.org should be the only spamhaus.org DNSBL in your IP blocklist configuration. You should not use ZEN together with other Spamhaus IP blocklists, or with blocklists already included in our zones (such as the CBL) or you will simply be wasting DNS queries and slowing your mail queue.
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You don't need to be a genius to debug a pf.conf firewall ruleset, you just need the guts to run tcpdump
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