Fix event id 9175 occurred in Exchange server completely

In MS Exchange server, event ids are plays an important role in system diagnosis which allows the users to detect out the logging problems. There can e many reasons responsible for the occurrence of the event ids due to which you are unable to mount a database on the Exchange server. The most foremost one among them are the edb file corruption or when an anti-virus program removes Exchange server log file. In that situation, you need to go for the Exchange recovery.

To demonstrate the example, consider a situation where you are trying to mount a database on the exchange server, but the following error message appears on the screen:

"An internal processing error has occurred. Try restarting the Exchange System Manager or the Microsoft Exchange Information Store service, or both.
ID no: c1041724
Exchange System Manager”

In addition to this message, following event is logged in the Application log:

Event Type: Error
Event Source: MSExchangeSA
Event Category: (14)
Event ID: 9175
Description: The MAPI call ‘OpenMsgStore’ failed with the following error: The Microsoft Exchange Server computer is not available. Either there are network problems or the Microsoft Exchange Server computer is down for maintenance. The MAPI provider failed. Microsoft Exchange Server Information Store ID no: 8004011d-0526-00000000


The main reason behind the event id 9175 openmsgstore is the corruption of Exchange server database. But when an antivirus program deletes the current Exchange log file can be also one of the reasons for the event id 9175 mapi session.


In case of deletion, recover the exchange log file by following these steps:

First of all, move all inconsistent databases to backup folder.

If new E00.log is created then move it to backup folder and rename it form E00*.log to E00.log

Lastly, restore the database from backup

In case of edb file corruption, you can go for edb repair by using Edb recovery software that uses efficient scanning algorithms to scan, detect and repair all the corruption issues completely.