bug#15669: 24.2; smtpmail asks for password for anonymous logins

[Ted Zlatanov]

On Mon, 21 Oct 2013 08:35:42 +0100 Uday S Reddy <u.s.reddy@cs.bham.ac.uk> 
wrote: 

USR> I use an SMTP server that uses anonymous login with no password.  With 
Emacs
USR> 24.2, with auth-sources loaded, I find that sending a message through
USR> mail-mode asks for a password.  No password should be required for 
anonymous
USR> login.  This problem did not occur with Emacs 23.

USR> Looking through the code, I trace the problem to the function
USR> `smtpmail-try-auth-methods' which has the comment

USR>       ;; The user has stored the user name, but not the password, so
USR>       ;; ask for the password, even if we're not forcing that through
USR>       ;; `ask-for-password'.

USR> This code is getting fired even when `user' has the value "anonymous".

I don't think `anonymous' is a special user name for SMTP, right?  We
should really be looking at the SMTP response?

Can you use any password or does it have be empty?

Ted