Variable: gnus-uncacheable-groups
gnus-uncacheable-groups is a customizable variable defined in
gnus-cache.el.gz.
Value
nil
Documentation
Groups that match this regexp will not be cached.
If you want to avoid caching your nnml groups, you could set this variable to "^nnml".
If a group matches both gnus-cacheable-groups and gnus-uncacheable-groups it's not cached.
Source Code
;; Defined in /usr/src/emacs/lisp/gnus/gnus-cache.el.gz
(defcustom gnus-uncacheable-groups nil
"Groups that match this regexp will not be cached.
If you want to avoid caching your nnml groups, you could set this
variable to \"^nnml\".
If a group matches both gnus-cacheable-groups and gnus-uncacheable-groups
it's not cached."
:group 'gnus-cache
:type '(choice (const :tag "off" nil)
regexp))