troubleshooting Question

Two domains, One Forest, One Exchange Server - How to setup users from the non-exchange server domain

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DJR2006Flag for United Kingdom of Great Britain and Northern Ireland asked on
ExchangeEmail Servers
6 Comments1 Solution1110 ViewsLast Modified:
Hi Everyone,

I currently have two domains (let's call them and which seperate trees within the same forest.

I need to be able to setup one exchange server (which is already part of for users of both domains.

I know I can receive email for two different domains on one exchange server but I am struggling to provide access to users of to the exchange server using any information I can find on this site and microsoft. I have tried to associate an external account but obviously can't because they are part of the same domain.

Can anyone please provide a solution to setting up the users on

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