Subject: bug#30347: smtpmail.el doesn't retry with authentication when greylisting is used

From: Lars Ingebrigtsen <[email-masked]>
Date: Tue, 17 Apr 2018 14:45:46 +0200

Robert Pluim <[email-masked]> writes:

> Iʼm not sure I follow: the user has a matching machine in authinfo or
> wherever they keep their passwords, and the SMTP server advertizes
> AUTH support. Why would we not attempt authentication?

Because Emacs doesn't know that the user has a password entry in
~/.authinfo.gpg until the user has type the password.  (If the user is
using password-protected ~/.authinfo files without a password agent,
that is.)

Since most SMTP is still unauthorised, "opportunistic" password sending
may not be welcome.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no