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If you are planning to put the new server in the same domain, then you don't need the CodeTwo software. That is for cross forest migrations. Same domain migrations can all be done with native tools. For coexistence you will need two external IP addresses and host names for the two versions of Exchange, but unless you have overloaded the Exchange server I would be planning to move everything over a weekend. <br />
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Simon.
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If you are planning to put the new server in the same domain, then you don't need the CodeTwo software. That is for cross forest migrations. Same domain migrations can all be done with native tools. For coexistence you will need two external IP addresses and host names for the two versions of Exchange, but unless you have overloaded the Exchange server I would be planning to move everything over a weekend.

Simon.

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I currently have an SBS 2008 server running and we have just added a new 2012 Server which is currently running as a secondary domain controller at the moment. We have another new server that we are going to put Exchange 2013 on and use the CodeTwo software to migrate mailboxes, Public Folders etc. from the SBS box. My question is that once we upgrade the SBS 2007 exchange server to SP3 can we just install the new Exchange 2013 server on the same domain without any issues and they will happily co-exist until we are ready to run the migration software?
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I currently have an SBS 2008 server running and we have just added a new 2012 Server which is currently running as a secondary domain controller at the moment. We have another new server that we are going to put Exchange 2013 on and use the CodeTwo software to migrate mailboxes, Public Folders etc. from the SBS box. My question is that once we upgrade the SBS 2007 exchange server to SP3 can we just install the new Exchange 2013 server on the same domain without any issues and they will happily co-exist until we are ready to run the migration software?

Exchange 2007 and Exchange 2013

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

Small Business Server (SBS) is a line of server operating systems targeted at small businesses by bundling the operating system with a number of other Microsoft products that would normally need to be purchased or licensed separately. The most notable inclusions are Exchange, SQL Server, SharePoint and ISA/TMG (Microsoft's firewall and proxy server).

Active Directory (AD) is a Microsoft brand for identity-related capabilities. In the on-premises world, Windows Server AD provides a set of identity capabilities and services, and is hugely popular (88% of Fortune 1000 and 95% of enterprises use AD). This topic includes all things Active Directory including DNS, Group Policy, DFS, troubleshooting, ADFS, and all other topics under the Microsoft AD and identity umbrella.