I am using james-server-app-3.5.0-app.
We have a local domain mapped in our local dns server named syncme.com . This mail server is used in our WAN only(no public ip).
We enabled auth in mail server. SMTP and POP works fine.
This problem is :-
The above scenario i need to block and for all SMTP transmission i need authentication.
What should i need to do this for enabling the above one.