====== Howto use NGINX to Create an SMTP/IMAP Proxy ======

----
  *  Add in the //NGINX.conf//
<code>stream { include /etc/nginx/streams/*; }</code>

   * create /etc/nginx/streams
<code>mkdir -p /etc/ngninx/streams</code>

  * Add the Stream Data in /etc/nginx/streams/mail_proxy.conf
<code>
server { \\
listen [::]:25 ipv6only=off; \\
listen [::]:143 ipv6only=off; \\
listen [::]:587 ipv6only=off; \\
listen [::]:993 ipv6only=off; \\
proxy_pass 10.11.12.13:$server_port; \\
proxy_protocol on; \\
}
</code>


This will PROXY it directly to 10.11.12.13 where the Server_Port will be automatically selected. WITHOUT the dazzle of http auth