Exchange 2007 Installation Fails and Mixed Mode
Posted on 2009-05-15
I'll try to make this as short as possible. Here's the history:
1. Had SBS 2003 Server that was moved to Data Center for Exchange purposes.
2. Built a new Domain Controller before moving SBS server , seized FSMO roles etc.
3. Trying to install Exchange 2007 fails because it claims that the organization is in Mixed Mode.
Because SBS server is no longer visible to this domain there is no way to use ESM to switch to Native Mode but apparently there is still a bunch of stuff on the new DC that refer to that Exchange organization that is preventing me from installing 2007 on this domain...
Where can I go to manually fix this issue? I know I could build the Exchange server as a stand alone box and move it to data center to replace existing SBS box but I wanted to capture all of the AD components (users, etc...) before doing so to make the transition more simple and straight forward. Otherwise I'll have to deal with creating all new users, passwords, and everything else.