You have a third-party application that sets an incorrect order for the access control list of a Calendar folder in a mailbox.
You move the mailbox that contains the Calendar folder to a Microsoft Exchange Server 2010 mailbox server. The move operation is completed successfully.
You try to change the access permission of the Calendar folder by using an Exchange Web Service (EWS) application, or by using a MAPI application, such as Microsoft Outlook.
In this scenario, you cannot change the access permissions of the Calendar folder.
This issue occurs because of an error when the Exchange store validates canonical access control lists. Therefore, the MAPI or EWS application cannot retrieve the access control list table of the Calendar folder.
To resolve this issue, install the following update rollup:
2685289 Description of Update Rollup 3 for Exchange Server 2010 Service Pack 2
After the update is installed, you can enable the validation of canonical ACLs by configuring a registry key. To have us enable the validation of canonical ACLs for you, go to the "Fix it for me" section. If you prefer to enable the validation of canonical ACLs yourself, go to the "Let me fix it myself" section.
Fix it for me
To enable the validation of canonical ACLs automatically, click the Fix it button or link. Then click Run in the File Download dialog box, and follow the steps in the Fix it wizard.
Install update that is described in Microsoft Knowledge Base (KB) article 2685289 before you run this Fix it solution.
This wizard may be in English only. However, the automatic fix also works for other language versions of Windows.
If you are not on the computer that has the problem, save the Fix it solution to a flash drive or a CD and then run it on the computer that has the problem.
On the Edit menu, point to New, and then click DWORD (32 bit) Value.
Type CheckCanonicalACLDuringMove, and then press Enter.
On the Edit menu, click Modify.
In the Value data box, type 1, and then click OK.
Exit Registry Editor.
After the validation of canonical access control lists feature is enabled, you cannot move folders in which the access control list is not in a canonical order. Additionally, you receive the following error message when you try to move the folder: