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[Emacs-diffs] master e3bd6c4: mailclient can't send attachments

From: Lars Ingebrigtsen
Subject: [Emacs-diffs] master e3bd6c4: mailclient can't send attachments
Date: Sun, 22 Sep 2019 18:07:14 -0400 (EDT)

branch: master
commit e3bd6c406da2ea98bfcf6bbd37db78462fd75b31
Author: Lars Ingebrigtsen <address@hidden>
Commit: Lars Ingebrigtsen <address@hidden>

    mailclient can't send attachments
    * lisp/mail/mailclient.el (mailclient-send-it): Warn about trying
    to send attachments (bug#34992).
 lisp/mail/mailclient.el | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/lisp/mail/mailclient.el b/lisp/mail/mailclient.el
index 4d8cda1..0c2594c 100644
--- a/lisp/mail/mailclient.el
+++ b/lisp/mail/mailclient.el
@@ -47,6 +47,7 @@
 (require 'sendmail)   ;; for mail-sendmail-undelimit-header
 (require 'mail-utils) ;; for mail-fetch-field
 (require 'browse-url)
+(require 'mail-parse)
 (defcustom mailclient-place-body-on-clipboard-flag
   (fboundp 'w32-set-clipboard-data)
@@ -141,6 +142,14 @@ The mail client is taken to be the handler of mailto URLs."
                (narrow-to-region (point-min) delimline)
+                ;; We can't send multipart/* messages (i. e. with
+                ;; attachments or the like) via this method.
+                (when-let ((type (mail-fetch-field "content-type")))
+                  (when (and (string-match "multipart"
+                                           (car (mail-header-parse-content-type
+                                                 type)))
+                             (not (y-or-n-p "Message with attachments can't be 
sent via mailclient; continue anyway?")))
+                    (error "Choose a different `send-mail-function' to send 
                (goto-char (point-min))
                (setq coding-system
                      (if (re-search-forward mime-charset-pattern nil t)

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