Нужно обновить spamassassin на freebsd.
Текущая версия spamassassin:
root@mail:/etc # spamassassin -V
SpamAssassin version 3.4.0
running on Perl version 5.18.4
===>>> spamassassin-3.4.0_17
===>>> New version available: spamassassin-3.4.1_4
===>>> 77 branch ports
portmaster spamassassin-3.4.1_4
Возвращает:
===>>> No valid installed port, or port directory given
===>>> Try portmaster --help