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Slamming Spam: A Guide for System Administrators by Robert Haskins, Dale Nielsen

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Native MTA Anti-Spam Features (Chapter 4)

Blackhole Listing Services

Declude’s List of All Known DNS-based Spam Databases http://www.declude.com/JunkMail/Support/ip4r.htm

Jeff Makey’s Blacklists Compared http://www.sdsc.edu/~jeff/spam/Blacklists_Compared.html

Kelkea Mail Abuse Prevention (MAPS) http://www.mail-abuse.com/

Spam and Open Relay Blocking System (SORBS) http://www.dnsbl.au.sorbs.net/

SpamCop Blocking list http://www.spamcop.net/bl.shtml

Spamhaus Block List (SBL) http://www.spamhaus.org/SBL/

Spamlink’s listing http://spamlinks.net/filter-dnsbl.htm

Postfix

Fairly-Secure Anti-SPAM Gateway http://www.flakshack.com/anti-spam/

Jim Seymour’s suggestions/examples for Postfix anti-UCE configuration http://jimsun.linxnet.com/misc/postfix-anti-UCE.txt ...

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