(defvar display-time-mail-file nil
"*File name of mail inbox file, for indicating existence of new mail.
-Default is system-dependent, and is the same as used by Rmail.")
+Non-nil and not a string means don't check for mail. nil means use
+default, which is system-dependent, and is the same as used by Rmail.")
;;;###autoload
(defvar display-time-day-and-date nil "\
(getenv "MAIL")
(concat rmail-spool-directory
(user-login-name))))
- (mail (and (or (null display-time-server-down-time)
+ (mail (and (stringp mail-spool-file)
+ (or (null display-time-server-down-time)
;; If have been down for 20 min, try again.
(> (- (nth 1 (current-time))
display-time-server-down-time)