it seem modify "-o smtpd_sasl_auth_enable=no" below "smtp ... smtpd" work for
me.
then you could not auth successfully via port 25, and could auth successfully
via port 587 using tls.
thanks all.
---- On 星期三, 09 十一月 2016 08:35:36 -0800Wietse Venema
<wie...@porcupine.org> wrote ----
vod vos:
> What I want to do is to forbid AUTH PLAIN on port 25,
/etc/postfix/main.cf:
smtp ... smtpd -o smtpd_tls_auth_only=yes
However, you should not enable AUTH on port 25 at all, when your
submission clients connect to port 587.
The port 25 service is for MTA-to-MTA traffic, and that should not
be using AUTH.
> and just on port 587.
And forbid what on port 587?
Wietse
