Internal Email in Microsoft Exchange

[rmjames007]

In Microsoft Exchange, how do I set up the server to reject all external (external to the domain) email and use internal email? I have checked the setting to make it so that the user has login and give password to the SMTP server however it still handles the external email. What do I need to do so it stops that?

 

[Zelandakh]

Please rephrase your request as I am not sure what you are trying to ask.

 

[rmjames007]

Exactly what do I need to click/check In order to make sure that only a group of people have external mail and the rest of people have internal mail only.

 

[legalbeagle]

I would like the answer to this too.