5 years ago I foolishly made the error of installing Exchange 2003 onto a server that was a Domain Controller (one of 5 in this network, but it is a Global Catalog and not holding any FMSO roles) - I did not realise the security implications etc at the time.. I have also read there can be problems demoting a server running Exchange 2003. The Domain and Exchange server in general have run perfectly but now the server is getting a bit old I would like to remove it.
What I would like to do is to Install Exchange onto a new member server - move all the mailboxes across > demote the existing Exchange server and Uninstall Exchange.
My question is this - Is this ok to do the above? Is there anything that could potentially go wrong with this due to the fact Exchange is also a DC. Should I do this in any particular order ? We recently invested in a SAN array so hoping to virtualise the new Exchange server.
Thank you for your help and advice in advance :)