Why does the unauthenticated SMTP proxy include auth_http statement?

[Andy D'Arcy Jewell]

Hi all,

Can anyone throw some light on this for me please?

Looking at: 
http://wiki.nginx.org/Faq#How_can_Nginx_be_deployed_as_an_SMTP_proxy.2C_with_a_Postfix_backend.3F

It says "The example is for unauthenticated e-mail as you can see", but 
the example clearly shows authentication:

---------------------------------------------------------
mail { server_name mail.somedomain.com;
     auth_http localhost:8008/auth-smtppass.php;
---------------------------------------------------------

So I'm confused - should this be in there? Because if so, I'm obviously 
missing something about what unauthenticated means...

-Andy

-- 
Andy D'Arcy Jewell

SysMicro Limited
Linux Support
E:  andy.jewell at sysmicro.co.uk
W:  www.sysmicro.co.uk