Symptom: Outlook shows a delegated mailbox in the tree but you have no access to it but also cannot remove it
When accessing the Folder: “Cannot display the folder. Microsoft Outlook cannot access the specified folder location. The operation failed. An object cannot be found”
When attempting to Close the mailbox: “This group of folders is associated with an e-mail account. To remove the account, click the File Tab, click Account Settings. Select the e-mail account, and then click Remove”
- These instructions do not help because the account doesn’t exist in the profile account list
- Digging into the Advanced section of your own profile doesn’t show this as a delegated account
The solution:
Exchange must be updated on the server level. The easiest is to run a command in the EMC:
Remove-MailboxPermission -Identity ‘<mailbox owner>’ -user ‘<delegate username>’ -AccessRight FullAccess -InheritanceType ALL
Wait a couple of minutes then re-open Outlook. You should find the delegate mailbox now missing from the tree.
To speed up the removal process (from Outlook) you may need to restart IIS on the Exchange Server. (DOS command: iisrest)
However, I’ve found Exchange can be stubborn and Outlook refuses to refresh. You no longer have permissions to the mailbox and Outlook tells you as much but the mailbox still shows up in the list.
To get rid of it try this:
Add-MailboxPermission -identity ‘<mailbox owner>’ -user ‘<delegate username>’ -AccessRight FullAccess -InheritanceType ALL -AutoMapping $false
Remove-MailboxPermission -Identity ‘<mailbox owner>’ -user ‘<delegate username>’ -AccessRight FullAccess -InheritanceType ALL
Remember to wait a few minutes to open Outlook or restart IIS on the Exchange server before checking again.
