+
+@item nnfolder-save-buffer-hook
+@vindex nnfolder-save-buffer-hook
+@cindex backup files
+Hook run before saving the folders. Note that Emacs does the normal
+backup renaming of files even with the @code{nnfolder} buffers. If you
+wish to switch this off, you could say something like the following in
+your @file{.emacs} file:
+
+@lisp
+(defun turn-off-backup ()
+ (set (make-local-variable 'backup-inhibited) t))
+
+(add-hook 'nnfolder-save-buffer-hook 'turn-off-backup)
+@end lisp
+
+@item nnfolder-delete-mail-hook
+@vindex nnfolder-delete-mail-hook
+Hook run in a buffer narrowed to the message that is to be deleted.
+This function can be used to copy the message to somewhere else, or to
+extract some information from it before removing it.
+