Dnia 8.09.2026 o godz. 09:32:03 Randolf Richardson, Postmaster via mailop pisze: > No, it's not like falsely considering someone guilty of murder, and > it's also not the default -- blacklists are typically evidence-based, > relying on evidence of past and/or on-going abusive behaviour(s) from > specific sources like IP addresses. The reliable DNSBLs with > reasonable policies applied consistently tend to be more widely-used. > > The message is simple: Don't want your mail servers blacklisted? > Secure your systems properly and don't do business with spammers.
You are right when it comes to *most* DNSBLs (well, the famous DNSBL "whose name should not be mentioned" does *not* belong to this category). I have nothing against DNSBLs that list IPs that actually sent spam. On the contrary, I consider them a very useful tool that I use as well. My comment was rather referring to people who preemptively, manually block a whole ISP, thus hurting the customers of that ISP who are not spammers and send legitimate mail. Should putting pressure on an ISP justify hurting of innocent customers of that ISP? That is the question... -- Regards, Jaroslaw Rafa [email protected] -- "In a million years, when kids go to school, they're gonna know: once there was a Hushpuppy, and she lived with her daddy in the Bathtub." _______________________________________________ mailop mailing list [email protected] https://list.mailop.org/listinfo/mailop
