I have found out something:
When I use amavisd-new, the spam score is much less (2.5). When I invoke spamassassin < message, it is higher (5.2). Network tests are enabled in amavisd-new.
Compare the headers of a mail going through each way, and see which rules are affecting the score.
Mojo -- Morris Jones Monrovia, CA http://www.whiteoaks.com Old Town Astronomers: http://www.otastro.org
