Add cc, in-reply-to, and references to default mailto_allow list.

Thanks to Gregory Anders for the ticket and suggested patch, which
this commit is based upon.

1 files changed, 7 insertions, 0 deletions

diff --git a/init.c b/init.c
index 32d563e7..2750e991 100644
--- a/init.c
+++ b/init.c
@@ -3816,6 +3816,13 @@ void mutt_init (int skip_sys_rc, LIST *commands)
   add_to_list(&MailtoAllow, "body");
   add_to_list(&MailtoAllow, "subject");
 
+  /* Allow a few other commonly used headers for mailing list
+   * software, and platforms such as Sourcehut.
+   */
+  add_to_list(&MailtoAllow, "cc");
+  add_to_list(&MailtoAllow, "in-reply-to");
+  add_to_list(&MailtoAllow, "references");
+
   if (!Muttrc)
   {
     const char *xdg_cfg_home = getenv ("XDG_CONFIG_HOME");