I've recently observed a fair amount of spam from domains that all share the same set of authoritative nameservers. It occurred to me that it might be nice to be able to blacklist mail from all domains sharing these nameservers, or maybe to simply have that trait count toward the spam score. I don't believe there's currently a plugin to allow this sort of thing. Is that correct? If so, would anybody be interested in one if I was to write it? Or am I missing something obvious that makes this not worth doing? I realize that the potential for collateral damage is high, so I don't think it'd be wise to try and publish any sort of data for such a plugin, but it seems like the plugin itself might be occasionally useful...
noah
signature.asc
Description: Digital signature
