Function: spam-backend-valid-p
spam-backend-valid-p is a byte-compiled function defined in
spam.el.gz.
Signature
(spam-backend-valid-p BACKEND)
Documentation
Is BACKEND valid?
Source Code
;; Defined in /usr/src/emacs/lisp/gnus/spam.el.gz
(defun spam-backend-valid-p (backend)
"Is BACKEND valid?"
(member backend (spam-backend-list)))