邮件过滤规则,向PERL高手求助!

发件人与收件人都是自己:
# From addr same @mydomain
header __FROM_8BIT_LOCAL From:addr =~ /[a-zA-Z0-9_-]*[\x80xff][a-zA-Z0-9_-]*\@clifford-estates\.com\.cn/i
header __TO_8BIT_LOCAL To:addr =~ /[a-zA-Z0-9_-]*[\x80-\xff][a-zA-Z0-9_-]*\@clifford-estates\.com\.cn/i
meta LOCAL_8BIT_USER (__FROM_8BIT_LOCAL == __TO_8BIT_LOCAL)
describe LOCAL_8BIT_USER From and To a same
score LOCAL_8BIT_USER 8.000

发信标题为空白:
header CN_SUBJECT_1006 Subject =~ //
describe CN_SUBJECT_1006 Subject contains "no any word"
score CN_SUBJECT_1006 7.000

但实际发现没有效果,指高手帮我修改一下,谢谢!