The contrib directory in this distribution includes various tools
that are useful. Currently, this includes:

contrib/blmanager.cgi

  A very simple CGI script that allows for the manipulation of DNSBLs
  through a web interface. It is intended as the basis for your very
  own and does not excercise all the features of DNS::BL. You must
  edit it before testing.

contrib/import

  This script is expected to be useful to import existing dnsbl data
  into your new DNS::BL based dnsbl. At our installation, we used it
  to migrate the existing BL data in djdnsbld format.

contrib/spamtrap

  This script is meant to be used in a procmail recipe attending to
  spamtraps. After some minor configuration, it should be able to
  process messages passed by procmail and figure out the SMTP client
  that delivered the spam. This script can archive the spam, produce
  the commands required to add new rules to two DNS::BL dnsbls and
  update an index. See its documentation for specific information
  about its inner workings and functions.

contrib/check

  This script checks the integrity of the indexes, to look for the
  development of branches with no leaves. This is being used for the
  analysis of wether to implement full tree cleanup.