I’ve been blocked because my IP address is on a blacklist. What do I do?

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Recently, some forums are not allowing me to register because they claim I’m a spammer. The administrator on one of them emailed me that my IP address is on some kind of blacklist. Now, I’ve checked my IP address on many blacklists and I was all green and clean so what’s the matter here? Should I or could I change my IP address? Is there any way to locate that blacklist and get me taken off?

IP address blacklists are normally unreliable and a poor approach to controlling whatever it is people are trying to control. But administrators definitely use them.

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