Variable: rmail-movemail-program
rmail-movemail-program is a customizable variable defined in
rmail.el.gz.
Value
"/nix/store/a658fvazk6z9r5piiflfxzv0b26vzrp6-emacs-release-snapshot/libexec/emacs/31.1/aarch64-unknown-linux-gnu/movemail"
Documentation
If non-nil, the file name of the movemail program.
If you customize this after starting Rmail, reset the
variable rmail-movemail-variant-in-use to the nil value,
and then restart Rmail.
Source Code
;; Defined in /usr/src/emacs/lisp/mail/rmail.el.gz
(defcustom rmail-movemail-program nil
"If non-nil, the file name of the `movemail' program.
If you customize this after starting Rmail, reset the
variable `rmail-movemail-variant-in-use' to the nil value,
and then restart Rmail."
:group 'rmail-retrieve
:type '(choice (const nil) string))