some comment

config.org

@@ -974,6 +974,9 @@ mu init --maildir=/path/to/mail/folder --my-address=mu@adress.com --my-address=a
 mu index
 #+end_src
 
+for credentials see
+https://www.emacswiki.org/emacs/SmtpAuth
+
 #+begin_src emacs-lisp
 ;(use-package notmuch
 ;  :ensure t)