While migrating public folders to the Exchange 2013 target, Public Folder Agents display "Unknown Error" when restoring or extracting items, similar to the following:
- "Unknown Error. (Microsoft Exchange Server Information Store) File: 'aeCopyMsg.cpp' Line: '1425'..."
- "Unknown Error. (Microsoft Exchange Server Information Store) File: 'aeCopyMsg.cpp' Line: '1692'..."