The logical corruption in the database of Exchange server cannot be taken lightly by you. When it comes to the causes of database corruption, it may happen at the time of jet-level repair by Eseutil/p command. Hence, this is not so difficult to identify logical data corruption. The corruption can occur with Indexes, Tables, Keys or sometimes the entire database. Using database space for repairing EDB files can cause loss of data. Despite of that reason of logical data corruption, the precious data of Exchange server could be lost.
However, it ultimately loses your old precious company data in order to recreate Exchange Database. If you have previous backup of database, then there is no problem to restart the communication. Otherwise, it is always best to download and install the third party Exchange Recovery Tool. This tool works on advanced conversion technology from EDB files into PST file format and this is specialized for that.By using the Free trial version of this software available absolutely free, you can get complete information in preview item which mailbox is recovered or converted. This facility available in free trial version.
http://www.exchangeserver.pcrecoverytools.com/