The Spamhaus Project is one of the largest anti-spam DNS blacklist services known. Founded in 1998, Spamhaus has operations in Geneva, Switzerland, and London in addition to the 28 investigators and forensic specialists located in 8 countries. Spamhaus is a true 24 hour a day anti-spam operation. With over 60 public DNS Servers distributed across 18 countries, Spamhaus is able to serve billion of DNS requests to the world over, all free of charge. It has been estimated that 1.4 billion users mailboxes are in some way protected by The Spamhaus Project every day.

Here, I will show you a script that automatically blocks IPs blocked by Spamhaus:



echo “”
echo -n “Deleting DROP list from existing firewall…”

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