Exchange Server is the most widely used networking platform across the globe. The entire data that is generated while Exchange Server is in an operational state, gets stored in EDB or Exchange Database files. Several mailboxes can reside in an Exchange server, depending upon the number of users who have access to the server. But sometimes, due to abrupt behavior of EDB files, Exchange server tends to behave in an abnormal manner. This can include frequent generation of errors, performance issues, etc. Usually the main reason behind abnormal behavior of EDB files is inconsistency of the database which may include deletion of some mails and other items.
In this blog, we have discussed the reasons which can lead to corruption of EDB files which ultimately lead to deletion of mails from Exchange mailbox. We will direct our focus on the process of Exchange mail recovery following deletion of mails from Exchange mailboxes.
Major Reasons Behind Corruption Of EDB Files
In cases when some of the data items residing within the file are deleted or are inaccessible, the EDB file can be refereed to be corrupted. The most probable reasons that tend to lead EDB files and the data within it in a corrupted state are:
1. Exchange Dirty Shutdown
Exchange Server is said to be in a dirty shutdown state, when it is shutdown in an inappropriate manner or abruptly. The dirty shutdown can take place either when the user improperly shuts the server or when a sudden power failure occurs. In both the cases, the database is highly prone to get corrupted.
2. Corrupt Header Information
Header information is used by Exchange to identify the different pages of the database. The header information reveals the complete information about a particular database. In case the header information gets corrupted somehow, like any alteration in the physical location of the logical page, the database is likely to get corrupted.
3. Exceed In File Size
The maximum logical file size of EDB files is 250 GB by default. In case the size of the file crosses over this limit, the data stored in it is likely to get corrupted.
4. Virus Intrusion
Another reason which plays a major role in EDB corruption is bugs and malwares, which can be injected in the Exchange Server database. These malwares or bugs corrupt the entire database and makes it inaccessible.
Recovery Of Data Residing In EDB File
The foremost concern that follows the corruption of EDB file is recovery of deleted or inaccessible data. The data can include items like mails, contacts, calendar entries, etc. No doubt, there are inbuilt tools available like Eseutil, but in case of physical corruption issues like header corruption, the tool further make the situation worst. The tool may corrupt the EDB file logically, which is beyond repair. Therefore, as an alternative to the inbuilt tool it is wiser to take assistance of third party tools. Exchange Deleted Email Recovery, a third party application is a well-equipped to recover deleted or inaccessible data from corrupted EDB files. The software ensures Exchange mail recovery even if they are permanently deleted. The dual scan modes in the software ensure that the data is recovered even from a highly corrupted state. Thus, it is the most effective solution for Exchange mail recovery.