Good Morning Ladies and Gentleman,

I have an issue with my Exchange Server and I believe it is caused because of a Disjoint Namespace.  I am not 100% sure if this is the case though.  My current setup is that the Exchange 2013 server is going to be part of a child domain, all the servers and computers that connect to the server will be part of this child domain.

What I believe my issue is, is my www domain which will be pointing to the exchange server is different than my active directory domain.  So I have something like child.addomain.com which is different than my mail.wwwdomain.com or my owa.wwwdomain.com 

I am not sure if this qualifies as a disjoint namespace or not though?  If it does how do I resolve this issue do I need to re-install Exchange from scratch?  I tried doing the disjoint namespace steps listed on the Deployment Assistant but all this did was make it so my server no longer sends or receives emails and my clients are no longer able to connect.

Any help on this would be appreciated.

Cheers,

Johnathan