> > No, it means spamd isn't used. ...
>
> This i misunderstood too, i thought spamd IS the spamassassin-daemon.

It is. And so is amavisd, just uses a different protocol to talk with a MTA.
You don't need both.

> On my system, spamd is running. But i don't find any running spamassassin
> process.

If you use amavisd, there is no point in running spamd too, it won't be used.

>- check your rules on a test mail, be sure to run it under
>  the same user as amavisd will run under:
>  # su vscan -c 'spamassassin -t <test.msg'

So, did you try this on your sample message?

  Mark