The best solution of all is writing to the offending site's postmaster.
  I already wrote a harsh complaint about the non-suitability of the netbsd
  mailing lists for commercial traffic. (This was about 4 days ago, right
  after the first one came across current-users)  Since that didn't have
  any effect, I'm going to call the ISP and then try their upstream
  provider if all else fails.


  I am thinking that perhaps it might be time to put into practice all the
  things we are learning in the tech-kern mailing list about race
  conditions and unix security.