How can I allow a 2010 Exchange server to use DC's that don't have presmissions to read the SACL on the ntSecurityDescriptor attribute?

Posted on 2011-02-24
Last Modified: 2012-08-14
We have a relatively new 2010 Exchange server and 2 new 2008 DC’s. In all there are 3 DC’s but the Exchange server can only see the oldest DC (2003) as a domain controller server and Global Catalog Server.

The new exchange server can see all DC’s in DNS. The old Exchange server (2003) has been decommissioned, I am unsure if the Recipient Update Service was assigned to the new exchange server whilst it was being decommissioned.

On the new exchange server in the Event Viewer under Event ID 2080 I can see that the 2 new DC’s don’t have SACL rights, which from what I understand is needed in order to be used by Exchange 2010. We are in the process of decommissioning the old DC but after testing the environment (shutdown) without the old DC, Exchange services stop (which makes sense as it can’t access the 2 new DC’s).

Is there a workaround to give the new DC’s permissions to read the SACL on the ntSecurityDescriptor attribute so that the Exchange server can use them when we get rid of the old DC?
Question by:aztechcomms
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Expert Comment

ID: 34970361
We can Powershell to force the Exchange 2010 to use a preferred local domain controller:
"Set-ADServerSettings –PreferredServer "mydomaincontrollername.domainname.local"

Author Comment

ID: 34970450
We have already tried forcing this but this didn't work - Exchange will only use a DC that has permissions to read the SACL on the attribute as mentioned above.

Expert Comment

ID: 34973662
Exchange does not use any domain controller that does not have permissions to read the SACL on the nTSecurityDescriptor attribute in the domain controller.
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Author Comment

ID: 34977701
The last paragraph of the initial question;

Is there a workaround to give the new DC’s permissions to read the SACL on the ntSecurityDescriptor attribute so that the Exchange server can use them when we get rid of the old DC?

Accepted Solution

aztechcomms earned 0 total points
ID: 35009228
The new DC's were built after the Exchange server and the FSMO roles transferred from the PDC to the new DC. Ran domain prep again (for the new DC) and the SACL permissions were granted.

Author Closing Comment

ID: 35045597
This has fixed the issue

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