2 domains 1 exchange server

ASKER

i woul dlike to add that the domains will be local ad domains like abc.local and dsc.local the primary dc will bc abc.local and the second domain will be dsc.local. i will be setting up the new second dc in a exsiting forest of the primary dc.

Thanks

Do they really need a new domain in the existing forest can't they use the existing domain?
If you need to have 2 domains in aforest and just one exchange server I think you need to have a trust setup between the 2 domains.

ASKER

i have trust set up but i do not know how to set up the exchange server..

once the trust is set up.make your exchange server to accept the email from both domains by adding the recipient policy and also asking your ISP to create MX records for the 2nd domains.
When you create the account in the 2nd domain choose mail box server as the exchange server in the first domain.

ASKER

but if i have a new domain in a exsiting forest and i set up a user in that domain i cannot create a mailbox in the second domain becuse exchange does not see the new domain.

should i draw up a visio grpah so you can see what i am trying to build?

question is are both companies gonna be same site or building, and whether ou need all clients to access their from mail outlook (on a local server) or you can have them accessing mail through owa.

ASKER

yes both companis will be in the same building and yes they will access the mail from there outlook and webmail for exchange i want to have 1 exchange server and a second mail store if possible

Steps for new setup:-

1) Build AD forest (ForestA)
2) Raise both Forests functional level to Windows 2003
3)Raise both Domain functional level to Windows 2003 ( you should not have any windows 2000 domain controllers, if you have then, raise the functional level to windows 2000 native.

4)Establish Two way forest trust with Forest B (which is account Forest where all user accounts will exist) and validate the trust from both sides.
To validate more:- Create a folder in Forest A and give security rights to Forest B administrator.
5)Install Exchange 2003 and install the SP2.
6) Give Exchange admin privillages to ForestB administrator account by delegating admin rights to that user

User mailbox creation:-

1)Create an AD user account(John) in Forest B. In Forest A where you have Exchange, Create an AD user account (John) with the same name and create a Mailbox.
2) Disable the AD user(John) in Forest A(where u have mailbox). After disabling, the mailbox doesnt have AD user account associated with.
3) Right click the Disabled account, select Exchange Tasks, select "Associate to external Account" and select the user(John from Forest B), click finish..

Now the mailbox can be accessible using Forest B, John's credentials.

http://forums.msexchange.org/m_1800483981/tm.htm

so no need for any new servers, just add their username names in AD or their domain name in receipent in exchange system manager

doing what mboppe suggested is unnessacry and it is up to u do that or not since it the same building. it really depends what structure u want. but i would suggest that you keep the new server as either a active directory replica or file sever for the network, unless you want to enforce different group policies for the other company than yours, which gonna end up a headache later on to keep control of both while you can just add both compaines members in seprate ou in the same AD and apply the need poiclies to each ou

ASKER

this new business will have its own subnet and everthing i would just add a new ou to ad but i need the netbios name to be different on the new company. the higher up people do not want users to see the old company name when the log into the domain.

then just create a new AD for them

ASKER

i understand what you are saying but what i am asking is if i create a new ad domain for the new company. how do i set up my exsiting exchange server to create milboxes for the new domain? i want to have all dc in the same forest and have 1 exchange server doing all the work.

SOLUTION

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follow mboppe suggestion then it fits ur case now totally

mboppe what i understood he needs to the new company not to see old company naming, they might share exchange server with each but kinda nothing more than that

ASKER

yes you are correct i need only to set up 1 exchange server but have 2 different dc's in the same forest i have other servers that will share like a app server and filestore but thats it. the exchange is the hard part. i only want to set up 1 exchange server and maybe down the road add a mailbox store as this server was to get full.

If thats the case I have already answered your question in the above comments.

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sensored2008 You are right .

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