We were in the process of upgrading to exchange 2010 from exchange 2003. All mailboxes are still on the 2003 servers, but everything was pretty much ready to go. The 2010 server fell over last night and it is causing issues with routing. Mail is taking ages to go anywhere.
Is there a documented process for removing the exchange server out of AD without touching the 2003 infrastructure. I would have thought I would be ok to delete the 2010 administrative and routing groups is this correct? Then remove the server through ADSI Edit.
Anyone got any ideas?