trac : sudo easy_install http://svn.edgewall.com/repos/trac/plugins/0.12/spam-filter-captcha/

http://trac-hacks.org/wiki/RegistrationConfirmationPatch is this already installed . (In

=== [http://www.molgenis.org/admin/general/plugin#no72 TracSpamFilter 0.4.1dev-r10318] there is an option EmailVerificationModule, although does not verify the regstration of the users with email .  ===