Variable: rmail-summary-subjects-hash-table
rmail-summary-subjects-hash-table is a variable defined in
rmailsum.el.gz.
Value
nil
Documentation
Hash table linking subjects with index of the first message with that subject.
Source Code
;; Defined in /usr/src/emacs/lisp/mail/rmailsum.el.gz
(defvar rmail-summary-subjects-hash-table nil
"Hash table linking subjects with index of the first message with that subject.")