Variable: uce-mail-reader
uce-mail-reader is a customizable variable defined in uce.el.gz.
Value
rmail
Documentation
A symbol indicating which mail reader you are using.
This variable was added, or its default value changed, in Emacs 20.3.
Source Code
;; Defined in /usr/src/emacs/lisp/obsolete/uce.el.gz
(defcustom uce-mail-reader 'rmail
"A symbol indicating which mail reader you are using.
Choose from: `gnus', `rmail'."
:type '(choice (const gnus) (const rmail))
:version "20.3")