今のバージョン
clamav-milter:0.97.6
dkim-milter:2.8.3
OpenDKIM:2.7.3
spamass-milter:0.3.2
ClamAV(clamav-milter同梱):http://www.clamav.net/
dkim-milter:http://sourceforge.net/projects/dkim-milter/
OpenDKIM:http://www.opendkim.org/
spamass-milter:http://download.savannah.gnu.org/releases/spamass-milt/