The CBL takes its source data from very large spamtraps/mail infrastructures, and only lists IPs exhibiting characteristics which are specific to open proxies of various sorts (HTTP, socks, AnalogX, wingate etc) which have been abused to send spam, worms/viruses that do their own direct mail transmission, or some types of trojan-horse or "stealth" spamware, dictionary mail harvesters etc.
simondsmason wrote:I don't believe my email server is a NAT gateway, so I guess it is not?
simondsmason wrote:I have 4 machines in my home network sharing the same IP address. I have scanned all of them to see if they are doing anything they shouldn't be - using usual malware scanners, etc. So far I have found nothing. What can I do to find out where this is coming from? CBL simply has not responded to me so I don't even know what evidence they have to support the blacklisting. This is the most frustrating part of this whole thing. They keep blacklisting me, and they won't talk to me!
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