

Launch ADSIEDIT.MSC and modify the mAPIID values for the necessary attributes.

Click the Enter button, then click the Run button. In the Modify dialog box, leave the DN field blank, and type schemaUpgradeInProgress in theĪttribute field. Login as a member of Schema Admins (preferably on the Schema Master FSMO)Ĭonnect to the Schema Master FSMO using LDP.EXEīind to the Schema Master using an account with Schema Admin permissions. Then close the registry and now you should be able to modify through ADSIEDIT. In HKEY_LOCAL_MACHINE\ System \CurrentControlSet\Services\NTDS\Parameters, create the following value: I have done these tow things to try to get rid of that error: When I try to remove them, I get the "Cannot be modified because its owned by the system" error message. I have no one in the list but many in the listBL. Im having the same issue as everyone in here but identical to Abdul Jaleel Maliks issue. MsExchDelegateListBL: CN=sumith,OU=2010-Remove,DC=darling,DC=local MsExchDelegateListBL: CN=Jay Kumar,OU=Head Office,OU=Planet,DC=darling,DC=local MsExchDelegateListBL: CN=Payroll Head Office,OU=Human Resources,OU=Head Office,OU=Planet,DC=darling,DC=local MsExchDelegateListBL: CN=Zhou Yun,OU=Chinese Inbound,OU=Head Office,OU=Planet,DC=darling,DC=local MsExchDelegateListBL: CN=Hani Khamis Hamad,OU=Head Office,OU=Planet,DC=darling,DC=local MsExchDelegateListBL: CN=Jennifer Eder,OU=Reservation,OU=Al-Qouz,OU=Planet,DC=darling,DC=local "The attribute cannot be modified because it is owned by the system." There are no values in this attribute for userĪnd there are multiple values for following attributeĪnd I tried to delete these values but I receive following message Tried all possible ways to remove additional mailboxes all fruitless Problem only appeared after upgrading to Exchange 2010 SP1 Using Exchange 2010 SP R2 and Outlook 2010 (migrated from exchange 2007 SP2) So, it's hard to say if it's one bug or two, the mailboxPermission PSĬommand exchange uses, doesn't seem to check/clear the MSExchDelegateListLink attribute, and possibly another bug with Outlook not actually listing "Addition Mailboxes" unless you add one, then you see many. Doesn't help with removing the one you no long have access to. If you go to the location in Outlook to Add addition mailboxes, and add one, it seems that you see the rest. I am a little disturbed that I would still have access to this other mailbox AFTER I removed the permissions to it, but because of this MSExchDelegateListLink attribute, that I still did. The next time you start Outlook 2010, the ghost "additional" mailbox should disappear after a few minutes. So far what I've found to work is having to go into ADSIEdit.msc, Domain context, and drill down to the account you wish to be removed from, and look for the "MSExchDelegateListLink" attributeĪnd remove yourself from that list. I too have experienced this issue too, with a lousy resolution.
