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Are current blocklists ineffective?


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Theoretical question, but do you find that current blocklists are ineffective?

For example, yet another spam came from the IP (somewhere in Thailand). Ok no problem, I enter it in dnsbl.info, which scans about 50+ blocklists and guess what, comes up "green" on all of them. Several hours later, still all green.

I'm testing lots of IP's from spam that go through and they all appear unlisted. Even those coming from yahoo.com and outlook.com.

So whats up with the blocklists these days? Are spammers getting lucky or have their tools improved?

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