Recently it has been widely published that bl.open-whois.org, a blocklist which was included within the default install of spamassassin has been taken offline and is no more. Users of the open source spamassassin application started to report that emails were being marked as spam wrongly. Upon investigation it appears that the domain open-whois.org had fallen into the hands of cyber squatters, presumably because the previous owner of the domain did not reregister the domain.