Anti-Spam for Service Providers. Supported entirely by donations.
Any time spam is sent to their servers or spam traps, an IP will be listed in the 0spam.fusionzero.com dnsbl with the data code of 127.0.0.#, when spam is sent from multiple IPs within a class C range to their servers or spam traps the entire class C range will be listed with a 127.0.#.0 data code. The 0spam project does not list anything larger than a class C range.
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