smtp proxy with postfix

[Cugar15]

HI Maxim, thanks for reply!

1) Interesting, I will look into the ngx_stream_core_module

2) I still have one question for Xclient = on - since I'm banged my head
against it for days now:

You state: All information obtained by nginx is passed via the XCLIENT
command.

Is this true for all credentials?? Like username and password as optained
with a 'auth login' sequence:
Somehow, I can find: sasl_method=XCLIENT, sasl_username=username at mydomain.de
in the postfix logfile. 
However, I cannot find the password information...

Thanks again,
Cugar15

Posted at Nginx Forum: https://forum.nginx.org/read.php?2,263559,263794#msg-263794