請教 spamassassin 的過濾原則

[Cheung]

小弟在 spamassassin 中設定檢查如下的規則

required_score 50.0

header SUBJECT_SPAM_1 Subject =~ /thought/i
describe SUBJECT_SPAM_1 Subject seems SPAM
score SUBJECT_SPAM_1 200

header SUBJECT_SPAM_2 Subject =~ /remembered/i
describe SUBJECT_SPAM_2 Subject seems SPAM
score SUBJECT_SPAM_2 200

header LOCAL_RCVD Received =~ /.*(\S+\.example\.com\.tw)/
describe LOCAL_RCVD Received from office Mail
score LOCAL_RCVD -1000

定義滿 50 分則視為 spam

然後進行測試

從公司內部發 mail 主旨帶有 上述的二個關鍵字
remembered & thought

觀察 X-Spam-Status 會回報檢查到規則 SUBJECT_SPAM_1 及 SUBJECT_SPAM_2

同時因有查到 規則 LOCAL_RCVD 所以最後分數判斷為 800 不為 spam

在從公司外部主機發同樣帶有 remembered & thought 的主旨之mail

但是卻遇到會去檢查規則 LOCAL_RCVD 因此也被判為非 spam

反而失去公司內部所發才不視為 spam 的用意

這是我定義錯誤還是公司內部發的 mail 規則扣的分數太多所致嗎?