What is OST File in Exchange Server - Corruption Issues & Solution

Microsoft® Exchange Server famous file format used to save offline data called Offline Storage Table i.e. OST.

OST is the file that is saved at MS Office client end. When MS Outlook is used as an offline email client, the files are saved here from MS Exchange Server. These files are used to retrieve data form MS Outlook mode even in offline mode. MS Outlook the email client saves all its information in OST format. At this time the Outlook is connected to Exchange Server, without any internet connection. Multiple Outlook email clients are connected to Exchange Server and also with each other. All Outlook clients communicate & exchange data in the OST format. So OST format is as beneficial for an Offline email client.

Exchange Server and OST Dependency...

What happens when the connecting backbone just crashes out? The severe situation emerges when MS Exchange Server crashes or stops working due to heavy load or virus attack.

At that time all Outlook email clients that are connected to exchange server also become inaccessible. As OST files that are saved in Outlook email client become inaccessible due to server dependency. At Exchange server down time OST files become corrupted & are turned into unreadable format.

Why OST File Become Inaccessible?

  • Due to Virus or trojan attacks on Exchange Server
  • Exchange Server down due to database corruption
  • Accidental shutdowns and Bad Sectors
  • Software & hardware malfunction can’t sync OST file
  • Accidental deletion of user account & information rebuilding
  • Less capacity to backup heavy sized .OST files
  • Upgrading from old server to latest server

How to Recover Data from Damaged OST files?

To access offline OST file user is required to convert OST to PST files. The most comprehensive solution to rise above this insane situation is present under the roof our organization. OST Converter software has the finest control over Orphan OST file. Seamless OST2PST conversions are accomplished by OST to PST Converter software.