Variable: nnmail-use-long-file-names
nnmail-use-long-file-names is a customizable variable defined in
nnmail.el.gz.
Value
nil
Documentation
If non-nil the mail backends will use long file and directory names.
If nil, groups like "mail.misc" will end up in directories like
"mail/misc/".
Source Code
;; Defined in /usr/src/emacs/lisp/gnus/nnmail.el.gz
(defcustom nnmail-use-long-file-names nil
"If non-nil the mail backends will use long file and directory names.
If nil, groups like \"mail.misc\" will end up in directories like
\"mail/misc/\"."
:group 'nnmail-files
:type 'boolean)