bsfilter

私も.mew.elに以下のように設定していますが、lsをしたのちspam folder SPAM2
に入れた後
$ bsfilter < ~/Mail/SPAM2/xxxx; echo $? とすると、1 (ham)が返ってきます。
これはこのspam mailに
X-Spam-Flag: No
X-Spam-Probability: 0.500000
がつけられたからでしょうか？
X-Spam-Flag: No をYesに変更すればいいのでしょうか？　どうやったらいいので
しょうか？

~/.mew.el
;; bsfilter
;; $Id: mew.el,v 1.1 2009/04/30 16:50:26 nabeken Exp $

(setq mew-pop-proxy-server "localhost")
(setq mew-pop-proxy-port "10110")

; moved from .emacs.el
(setq mew-spam: "X-Spam-Flag:")

; put "D"
(defun mew-spam-bsfilter (val)
(let ((case-fold-search t))
(if (string-match "yes" val) ?D)))

; put "o +SPAM2" at inc
(defun mew-spam-bsfilter (val)
(let ((case-fold-search t))
(if (string-match "yes" val) "+SPAM2")))

(setq mew-inbox-action-alist
'(("X-Spam-Flag:" mew-spam-bsfilter)))

; for "ls" (learn-spam)
(setq mew-spam-prog "bsfilter")
(setq mew-spam-prog-args '("-C" "-s" "-u"))

; for "lh" (learn-ham)
(setq mew-ham-prog "bsfilter")
(setq mew-ham-prog-args '("-c" "-S" "-u"))

; for "bm" (mark-spam)
(define-key mew-summary-mode-map "bm" 'mew-summary-bsfilter-mark-region)

(defun mew-summary-bsfilter-mark-region (&optional arg)
"study/judge the region and put the '*' mark onto spams.
need to re-learn if judgment of bsfilter is wrong"
(interactive "P")
(mew-pickable
(mew-summary-with-mewl
(let* ((folder (mew-summary-physical-folder))
(msgs (mew-summary-pick-msgs folder t))
(prog "bsfilter")
(opts '("-a" "--list-spam"))
(pattern nil))
(setq msgs (mew-summary-pick-with-grep prog opts pattern folder msgs))
(mew-summary-pick-ls folder msgs)))))

; show X-Spam-Flag and X-Spam-Probability in message buffer
(setq mew-field-spec
(reverse (append (list (car (reverse mew-field-spec)))
'(("^X-Spam-Probability:$" t)
("^X-Spam-Flag:$" t))
(cdr (reverse mew-field-spec)))))