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That's called a DNSBL, and there are many of them, mostly for email spam though. https://www.dnsbl.info/ https://www.dnsbl.info/
by mortehu 6y ago
That's called a DNSBL, and there are many of them, mostly for email spam though.
https://www.dnsbl.info/ https://www.dnsbl.info/
- geocrasher 6y agoWhat I find infuriating is when an admin gets the bright idea to block all connections from IP's that are in mail dnsbl's. It's a great way to alienate people from using your services. I can't remember which company was doing it, but a customers API calls to a vendor failed because the vendor blocked the IP, which was blacklisted somewhere. Here's the kicker: The server wasn't even used to send mail and hadn't been for a long time. So we had to apply for a delisting from a mail blacklist for a server that didn't send mail so that a customer could use an API. The admin thought they were being clever, but instead they were just being difficult.