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If I need to design, what you are asking. I might create another forest and domain for Exchange alone and create linked mailbox for other forest. This is called, resource forest concept. &nbsp;Read this MS KB:<br />
<a href="https://technet.microsoft.com/en-us/library/aa998031(v=exchg.150).aspx" rel="ugc">https://technet.microsoft.com/en-us/library/aa998031(v=exchg.150).aspx</a>
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If I need to design, what you are asking. I might create another forest and domain for Exchange alone and create linked mailbox for other forest. This is called, resource forest concept.  Read this MS KB:
https://technet.microsoft.com/en-us/library/aa998031(v=exchg.150).aspx [https://technet.microsoft.com/en-us/library/aa998031(v=exchg.150).aspx]

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This question has been classified as abandoned and is closed as part of the Cleanup Program. See the recommendation for more details.
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This question has been classified as abandoned and is closed as part of the Cleanup Program. See the recommendation for more details.

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One client is having two locations, each has a separate AD domains and Forest (Windows Server 2008R2), with no trust relationship. Both locations have VPN connections.<br />
The first location has Exchange Server Standard (2010) - To be migrated to 2013 - hosting the first domain. <br />
<br />
The requirements are:<br />
- Install Windows 2012 R2 on two new servers and Migrate user accounts for each AD accordingly<br />
- Install Exchange Server 2013 and migrate Mailboxes of the fist domain <br />
- Host the 2nd AD domain on the same Exchange Server<br />
<br />
What are the steps to perform this, are there any documents? <br />
<br />
Abdullah
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One client is having two locations, each has a separate AD domains and Forest (Windows Server 2008R2), with no trust relationship. Both locations have VPN connections.
The first location has Exchange Server Standard (2010) - To be migrated to 2013 - hosting the first domain. 

The requirements are:
- Install Windows 2012 R2 on two new servers and Migrate user accounts for each AD accordingly
- Install Exchange Server 2013 and migrate Mailboxes of the fist domain 
- Host the 2nd AD domain on the same Exchange Server

What are the steps to perform this, are there any documents? 

Abdullah

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