The SORBS (Spam and Open Relay Blocking System) provides free access to its DNS-based Block List (DNSBL) to effectively block email from more than 12 million host servers known to disseminate spam, phishing attacks and other forms of malicious email. The list typically includes email servers suspected of sending or relaying spam, servers that have been hacked and hijacked, and those with Trojan infestations. In an attempt to provide preemptive protection, SORBS also lists servers with dynamically allocated IP addresses.
spam.dnsbl.sorbs.net - List of hosts that have been noted as sending spam/UCE/UBE to the admins of SORBS at any time, and not subsequently resolving the matter and/or requesting a delisting. (Includes both old.spam.dnsbl.sorbs.net and escalations.dnsbl.sorbs.net).
Spam Received See: http://www.sorbs.net/lookup.shtml?XXX.XXX.XXX.XXX
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