My monitoring service just notified me that an IP from my shared general outbound pool is listed on the Truncate DNSBL. This is really the first I've heard of this list. From what I read on their web pages, they claim that an IP is only listed if > 95% of the mail they detect is spam. I personally find this quite improbable coming from my systems.
Overall, the messages in that pool are statistically identical across IPs as everything is round-robin delivered. I'm measuring about 0.02% spam complaint rate, Hotmail SNDS is reporting "green", AOL postmaster says the stream is clean. There is nothing different about these numbers for a very long time. The IP in question is 199.83.97.5. Questions: 1) is this list used to cover a consequential number of inboxes? 2) is this list true to their self-proclaimed description of 95% spam required? 2a) if so, how would the data from the FBLs and from hotmail and AOL be so different? Thanks!
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