Try EDB recovery tool to repair Exchange.
Lepide Exchange Recovery Manager acts as a one-stop solution for faster EDB recovery, complete database restoration, hassle-free extraction and painless migration of data. To test the software, one can simply download it and get started.
LERM possesses the capability to restore information from inaccessible files, damaged EDBs and corrupt folders. With its inbuilt log viewer, one can get complete details about migration of mailboxes, folders and messages. The best part about using this tool is – it supports almost all versions of MS Outlook, MS Exchange including 64-bit editions of Outlook 2013 and Office 365.