taking over new business -- removing existing server from domain

Our company has purchased a business segment from another company.  This new office is located in the UK and will not be joined to our domain here in the US.  However, they must be "un"joined from their existing domain.  I think i have a handle on how to take care of mail mx records, and changing their recipient policy for the new email address.

My question(s) is what happens to the small business server once it has been removed from the old domain?  What happens to file shares \ rights?  Do we want to create a new domain?  If so, what happens to Exchange?

Thanks for any insights.

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Adam GrahamConnect With a Mentor Enterprise ArchitectCommented:
With SBS you certainly can have other DCs. See the following article about the top 10 Myths regarding SBS;


What is most likely true however is that if you get the admin passwords etc you can re-configure the existing SBS to act as a domain purpose built for that site, not needing to be part of your local domain. This would mean you could reconfigure Exchange for the needs of our staff on-site.

Adam GrahamEnterprise ArchitectCommented:
Small Business Server cannot be removed from the domain. SBS must hold all five FSMO roles. If you take out the SBS server, you take out the domain.

When you say the 'they must be unjoined' what do you mean by this? Are you trying to leave the clients simply in some kind of a workgroup?

Give us some more info on what you are trying to acheive on this site.

brett_apfcAuthor Commented:
I'm getting information third hand on this, so some info may be a bit unclear.

My understanding was that this server was part of a larger domain.  Since we are purchasing this business segment from another company, we cannot have this segment part of the other companies domain.

If SBS holds all FSMO roles, and is not communicating with other DC's, then there really isn't an issue, correct?  We would simply need administrative usernames and passwords to take over management.

The other issue would still be the name of the domain.  I am assuming changing the domain name is a bad thing?
Adam GrahamEnterprise ArchitectCommented:
Sorry, didn't see the last paragraph.

You cannot change the domain name without re-installation of SBS.

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