Hi,
We are about to install Exchange 2013 CU10 when we notice that there are existing Exchange objects already in the Active Directory.
We have verified that the Exchange servers have been decommissioned but incorrectly. Via the attribute value, we determine that 2013 CU3 was the version installed previously.
We wish to do a clean installation for the Exchange 2013 CU10 not polluted by the previous installation. May I know what is the cleaning required to achieve this.
Thanks.