On-Premises Exchange Is Dumb - Get rid of it in like 7? easy steps
- Go to your PDC and open ASDI Edit
a. Connect to your Active Directory in Configuration
b. Blow out the following items
CN=Services/CN=Microsoft Exchange
CN=Services/CN=Microsoft Exchange Autodiscover
2.Open ADUC and nuke the following OUs and their objects
a. -Microsoft Exchange Security Groups
-Microsoft Exchange System Objects
3. Open ADSI again, Connect to and this time use default naming context instead of configuration
a.Blow out the following
OU=Microsoft Exchange Security Groups
OU=Microsoft Exchange System Objects
4. Remove the AD Computer Object for the Exchange Server in ADUC
5. Remove the following auto-generated AD User Objects in ADUC
- Exchange Online-ApplicationAccount
- FederatedEmail.GUID
- Migration.GUID
- SystemMailbox{GUID}
- DiscoverySearch Mailbox{GUID}
6. Blow out any DNS entries you may have for the Exchange server in DNS. (Autodiscover, A records, CNames,
7. Log into your firewall, and remove any firewall or NAT rules for the Exchange Server
Congrats, you did things