
If you want to provide a DNSBL yourself, you need these tools.
Spamikaze, automated spam blocklist system - spamikaze.org/
Complete Blocklist Management System - cbms.sourceforge.net/
Pull relay IP addresses from a mail spool - arpa.org/erfm.pl
Pull relay IP addresses from a sendmail log - arpa.org/erfl.pl
Bluetack - www.bluetack.co.uk/forums/
SpamSort - www.strau.be/spamsort_en.html
rbl+2rbldnsd - www.spin.it/furio/software/
bld - www.online.redhate.org/bld/
Creating a Local DNS Blocklist for Use by Postfix with RBLDNSD - www.tqmcube.com/rbldnsd.php
blacklist2access - mail.monkeybrains.net/blacklist2access.txt
Decode SPEWS - www.five-ten-sg.com/util/decode.spews.pl
ordbscan - www.unixwiz.net/tools/ordbscan.html
SPEWS zone - www.davjam.org/~davjam/linux/spews_zone/index.htm - takes the SPEWS level 1 list and creates a BIND 9 format zone file
URI Find - search.cpan.org/~rosch/URI-Find-0.16/ - locates URIs in text
BL-Monitor - www.cmsconnect.com/BLMPro/BLMain.htm
Peacham Spam Trap - www.peacham.com/spamtrap/
DNS::BL - search.cpan.org/~luismunoz/DNS-BL/ - Perl
NewTrino - subwiki.honeypot.net/cgi-bin/view/Freebsd/NewTrino
LinuxMagic's Blacklist Mastering System - www.linuxmagic.com/products/bms
rbldnsd: Small Daemon for DNSBLs - www.corpit.ru/mjt/rbldnsd.html
rbldns: IP-address-listing DNS server - cr.yp.to/djbdns/rbldns.html
Wrbldnsd - www.itefix.no/wrbldnsd/ - Windows
blackberries - www.river.com/tools/blackberries/ - multiplexing DNS-based blacklist server in Perl
Net::DNSBL::MultiDaemon - search.cpan.org/~miker/Net-DNSBL-MultiDaemon/MultiDaemon.pm - Perl
How to setup a local RBL mirror - www.surbl.org/rbldnsd-howto.html
Locally mirror RBL zone files using rbldnsd with BIND on FreeBSD - www.surbl.org/rbldnsd-bind-freebsd.html
FAQ for rbldnsd and dnscache - www.surbl.org/dnscache-rbldnsd.html
Using BIND and rsync to cache RBL zones - www.surbl.org/bind-rsync.html
A lot of DNSBLs specify the ranges they list using CIDR subnets.
GeekTools AGGIS Interface - www.geektools.com/geektools-cgi/aggis-wrapper
aggregate - freshmeat.net/projects/aggregate/
grepcidr - www.pc-tools.net/unix/grepcidr/
IP Subnet Calculator - www.wildpackets.com/products/free_utilities/ipsubnetcalc/overview