- Enable SOUGHT ruleset in nightly sa-update
        http://wiki.apache.org/spamassassin/SoughtRules You must enable the
        sa-update cron job manually in /etc/cron.d/sa-update
    - Custom channels may be specified in these config files:
        /etc/mail/spamassassin/sa-update-channels.txt
        /etc/mail/spamassassin/sa-update-keys.txt