This tutorial somehow causes SA to function differently during testing as versus being invokved from qmail-scanner. I have run multiple tests and am unable to make SA obey the /etc/spamassassin/local.cf directives when invokved from qmail-scanner. Simple directives of 'rewrite_subject 1' do not work from qmail-scanner, however X-Spam-Level headers ARE added to all e-mails. To have the subject line changed, one must configure qmail-scanner with '--scanners "fast_spamassassin=[SUBJECT PREFIX TEXT]"' which certainly seems like a kludge at best.
If anyone can figure out why qmail-scanner is not allowing SA to see /etc/spamassassin/local.cf, I'd be enternally grateful. (This also defeats the point of having Razor2 or Pyzor installed, because as detailed above, they won't ever be invoked.)
Thanks all, excellent tutorials otherwise! :)