Set mml-secure-openpgp-sign-with-sender to sign messages

mml-secure-openpgp-sign-with-sender has to be set to t in the
configuration to continue signing messages since Emacs 27.1:

- https://notmuchmail.org/news/release-0.31/

diff --git a/emacstips.mdwn b/emacstips.mdwn
index 79df754dc1476639fd9209aface7a72720965412..7baa679a3d125513d0f287173fd3ee2789e4f64e 100644 (file)
--- a/emacstips.mdwn
+++ b/emacstips.mdwn
@@ -464,6 +464,7 @@ These functions are available via the standard `message-mode` keybindings
 
         ;; Sign messages by default.
         (add-hook 'message-setup-hook 'mml-secure-sign-pgpmime)
+        (setq mml-secure-openpgp-sign-with-sender t)
 
 This inserts the required `<#part sign=pgpmime>` into the beginning
 of the mail text body and will be converted into a pgp signature