> >even if a mail is not recognized as spam? > > Spamassassin should always insert an X-Spam-Status header by default. > > What version of SA are you using and how are you calling it? > I run debian/sid and
spamassassin 3.0.2-1 amavisd-new 20030616p10-5 postfix 2.1.5-5
Amavis does it's own tagging and only calls SA to generate scores. Thus SA's add-header settings (and defaults) won't help you here.
Ask some of the amavisd-new users. I know there's an amavis option to do this, but I'm not sure what it is as I don't use amavis myself.