I need to remove all data from AD relating to the Exchange 2010 org and then re-create as new.
Background Info...We have a single forest / domain running on Windows 2008R2 dcs although the DFL / FFL are both Windows 2003 server.
Recently I powered off one of our DC's that was a VM and stuck it in an isolated Test environment at the request of the management as they wanted to test Integration between our HR system and AD. I seized all the FSMO roles and manually cleaned up AD / DNS of all the DC's and sites not in use in the test lab so i was left with a single DC that was in a healthy state, i then renamed the domain from abc.com to testabc.com
All is good so far, everything looks healthy from a logs perspective and dcdiag etc
Now that has finished they have thrown me curve ball i was not expecting and requested Exchange be added to the test LAB. In prod we have 4 CAS / HT servers and 3 mailbox servers in a DAG so i do not want to P2V those into the LAB.
My preference would be to remove all exchange data from AD in test lab and all the attributes from user accounts and then install a fresh Install of exchange in a new Org and then re create blank mailboxes.
Anyone help me on how to go about this.