>
> I'm new to exim4, my need is very simple, i setup an exim in a ubuntu
> machine, it's actually a virtual dedicated server in the
> Internet, I have
> only less than 5 users, but i need to open the smtp relay so
> that I can send
> email anywhere I go. the server is up, but I found so many
> relays thru the
> server to the point that I have to shut it down. any way to limit the
> senders to those who has a unix account in the server? thanks.
>
Look at the documentation for setting up SMTP authentication and only allow
authenticated users to relay mail through the server.
http://wiki.exim.org/Authentication
would be a good starting point.
Have a read and come back here with any questions and we'll endeavour to help
you further.
J