> On Nov 19, 2019, at 5:31 AM, Viktor Dukhovni <postfix-us...@dukhovni.org> > wrote: > > If you are considering blocking, try to look at the SpamHaus > (or similar) TLD worst-offender list, and block just a few of those and review > the list from time to time.
You may also find useful (a bit dated, but perhaps still relevant): Statistical Analysis of DNS Abuse in gTLDs Final Report https://www.icann.org/en/system/files/files/sadag-final-09aug17-en.pdf I must admit that I don't have the cycles or motivation to wade through it, but perhaps someone on this list does, and might then comment on its relevance to the discussion in this thread. -- Viktor.
