Amavisd/Spamassassin Do not quarantine Spam

[Johannes Graumann]

Hi,

I am slowly working my way through 
http://wiki.kolab.org/index.php/Fighting_spam. I have edited 
/kolab/etc/kolab/templates/amavisd.conf.template such that 

    $spam_quarantine_to = 'kolab+shared.spambox\@MyDomain.org';

and

    $sa_tag2_level_deflt = 6.3;
    $sa_kill_level_deflt = $sa_tag2_level_deflt;

However, spam above that level does NOT get filtered into that folder (in 
fact, nothing gets there). Consider for example this header fragment from my 
personal mailbox:

    X-Spam-Flag: YES
    X-Spam-Score: 9.13
    X-Spam-Level: *********
    X-Spam-Status: Yes, score=9.13 tagged_above=3 required=6.3
        tests=[BAYES_99=3.5, FORGED_MUA_OUTLOOK=2.963,
        FORGED_OUTLOOK_HTML=0.001, FUZZY_CREDIT=0.74, HTML_MESSAGE=0.001,
        MIME_HTML_ONLY=1.925]

This mail gets a modified subject line

    Subject: ***SPAM*** wir ausgesetzt Ihrer Kreditkarte auf unbestimmte    
        Zeit

but that's all.

What am I doing wrong?

Thanks for any hints, Joh