Microsoft itself provides an inbuilt utility named as Eseutil/p that helps to repair the corrupt Exchange Server database at both page and table level. Almost all the cases of database corruption, can be easily solved with the repair utility. But, still some cases of severely corrupt Exchange Server database cannot be solved with the help of an Eseutil/p utility. An inbuilt utility starts throwing an error message. Corrupt Exchange Server database remains corrupt and data saved in the Exchange Server database remains in inaccessible state. Well, a backup is a best solution to overcome the problem of data inaccessibility. However, in case of invalid backup, the best solution is the use of an Exchange Recovery tool.
Discussed here is an error message that comes up on the screen at a time Exchange Server gets corrupt or damaged. When an attempt is made to repair the Exchange Server database through Eseutil/p utility, an overall attempt to open it fails. That, error message appears to be like this:
“Operation terminated with error -1605 (JET_errKeyDuplicate, Illegal duplicate key) after xxx.xxx seconds.”
Data saved in the database become totally inaccessible after the occurrence of above error message. Same error message bothers every time. It is quite intermittent.
Cause:
The fundamental cause responsible for the occurrence of above error message is the incorrect rebuild of B-trees by the repair program. Incorrect rebuild of B-trees will alter the whole meta data structure of the database, bringing it in a permanently non-repairable state.
Solution:
For solving the above error message, and to access the data of the records saved in the database, it becomes necessary to obtain the latest service pack of Microsoft Exchange Server 5.5, and after obtaining it. Try to perform repair of the Exchange Server database. However, if the database still remains unrepaired even after the installation of service pack, then a third party Exchange database Recovery tool becomes a need of hour.
In market, ample of software are available that does the repair of corrupt Microsoft Exchange Server database easily and within a small period of time. These tools perform Exchange server recovery, if the corruption is logical. These third party tools have been developed under the assistance of professionals.
These tools have read-only nature, well described procedures and effective recovery abilities.
Stellar Phoenix Mailbox Exchange Recovery is one of the tool that ensures complete repair of corrupt Exchange Server 5.5, 2000, 2003, and 2007 irrespective of the reason of its corruption. Data of all the Exchange Server objects, such as contacts, attachments, appointments, tasks, journal, events, etc become inaccessible. One good thing about this tool that makes it totally different from other tools is no sound technical skills are required for using it. A person from non-technical background can also use such software with much ease.

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