Include the message-id of forwarded messages in the new message.
This ensures that the new message is linked to the same thread.
---
emacs/notmuch-mua.el | 14 +++++++++++---
1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/emacs/notmuch-mua.el b/emacs/notmuch-mua.el
index e205fa4c..1ba9317e 100644
--- a/emacs/notmuch-mua.el
+++ b/emacs/notmuch-mua.el
@@ -433,8 +433,9 @@ the From: address."
(let* ((other-headers
(when (or prompt-for-sender notmuch-always-prompt-for-sender)
(list (cons 'From (notmuch-mua-prompt-for-sender)))))
- forward-subject) ;; Comes from the first message and is
+ forward-subject ;; Comes from the first message and is
;; applied later.
+ forward-references) ;; Accumulated message-ids of forwarded messages
;; Generate the template for the outgoing message.
(notmuch-mua-mail nil "" other-headers nil
(notmuch-mua-get-switch-function))
@@ -452,7 +453,12 @@ the From: address."
;; Because we process the messages in reverse order,
;; always generate a forwarded subject, then use the
;; last (i.e. first) one.
- (setq forward-subject (message-make-forward-subject)))
+ (setq forward-subject (message-make-forward-subject))
+ (if forward-references
+ (setq forward-references
+ (concat forward-references ", "
+ (message-fetch-field "Message-ID")))
+ (setq forward-references (message-fetch-field
"Message-ID"))))
;; Make a copy ready to be forwarded in the
;; composition buffer.
(message-forward-make-body temp-buffer)
@@ -466,7 +472,9 @@ the From: address."
(save-restriction
(message-narrow-to-headers)
(message-remove-header "Subject")
- (message-add-header (concat "Subject: " forward-subject)))
+ (message-add-header (concat "Subject: " forward-subject))
+ (message-remove-header "References")
+ (message-add-header (concat "References: " forward-references)))
;; `message-forward-make-body' shows the User-agent header. Hide
;; it again.
--
2.20.1
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