| dnsbl.net.au | Helping you block invalid E-mail |
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The SBL is a free DNS-based database of IP addresses of spam sources (spammers, spam gangs and spam support services) queriable in realtime by mail systems throughout the Internet for the purpose of refusing Unsolicited Bulk Email (spam).
The SBL database is updated 24/7 by an international team (US, UK, NL), distributed by 16 SBL zone mirrors based in Belgium, Denmark, Germany, Greece, Italy, Netherlands, South Africa, UK and USA, and supplies direct hourly SBL feeds to many of the Internet's major service providers, corporations, universities, government and military networks.
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