An Active Manager operation failed with a transient error.Exchange backup failed and getting IDs 21 in Application Log.I would suggest to follow this article –> (EXCHG.80).aspx Note that if you run Exchange BPA tool you might got error that Site folder server deleted. Refresh EMC and you should see that the database has been removed otherwise restart Exchange Information Store. –> CN=Configuration –> CN=Services –> CN=Microsoft Exchange –> CN=YOUR ORGANISATION –> CN=Administrative Groups –> CN=First Administrative Group –> CN=Servers –> CN=SERVER NAME +-> CN=InformationStore Open ADSIEDIT.MSC console and connect to configuration.To delete a folder or sub-folder, click anywhere on the folders. At that point you can click to select a specific sub-folder to remove. Note that clicking on the folder name will display sub-folders within that folder, if there are any.
In the list view, select the public folder you want to delete. We will EX1 to re-import the public folder data. We will be using EX as our test server to remove the public folder data. it is not required in my environment and no Outlook 2003 exist. Navigate to Public folders > Public folders. EX2 holds the public folder content for all users. Connect to the Configuration naming context. There is a known issues regarding delete public folder on exchange 2016 and that may appear on two scenarios: 1 st scenario when you delete the public folder from EAC but when you run the Get-MailboxStatistics you will find the public folder mailbox still appearing. If this would't work then you can use ADSIEdit. 1:- Powershell in Exchange 2016:-Set-MailboxDatabase Default-ExchDB-Exchange-01-PublicFolderDatabase null. so I decided to remove it through ADSIEDIT.MSC esp. Your public folder database is being used by newly created databases in Exchange 2016. I have tried to move the replica, but the procedures took too much time without feeling any progress. of course as every body know without removing Public Folder Replica, Exchange MB will not be uninstalled. now it is time to uninstall Exchange 2007. After I have upgraded my Exchange Server 2007 to Exchange 2010.