{ 
    my $sens = $spamassassin{Sensitivity} || 'medium';

    my %sens2hits =	( 
			'veryhigh'	=> 2,
			'high'		=> 3,
			'medium' 	=> 5,
			'low'	 	=> 7,
			'verylow'	=> 9,
			);

    my $hits = ($sens eq 'custom') ? $spamassassin{TagLevel}
				   : $sens2hits{$sens};

    return "required_score $hits";
}
