Source: http://www.experts-exchange.com/Software/Server_Software/Email_Servers/Exchange/A_5064-9-Steps-to-end-OAB-nightmares.html I spent quite a bit of time testing this procedure in an Exchange 2007 SP3 on Windows 2008 lab (not SBS). So it should work for Exchange 2010 too. Take care when SBS or multiple CAS servers are involved. I have tried to include additional information for those 2 scenarios. This procedure will help…
Source: http://blog.dargel.at/2012/02/23/remove-legacy-exchange-server-using-adsi/ The need to remove a (legacy) Exchange server using ADSIEdit could have several reasons. The method using ADSIEdit to remove an Exchange server should only be used carefully. The most common reasons are listed below: The deinstallation didn’t finish properly and left attributes or entries in Active Directory The Exchange server is permanent offline…