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When the OST file gets corrupt, it affects mailbox functionality and prevents users from accessing their mailbox data, such as emails, attachments, contacts, notes, etc. But if the process is interrupted due to weak internet connection during OST sync, the OST file may turn corrupt. When the connection is restored, the OST file automatically syncs with the Exchange Server mailbox to update data. It’s an advanced OST converter software that can convert large and even encrypted OST files to PST and other popular formats such as HTML, PDF, etc. Pro Tip: If data corruption issues have made your OST file inaccessible/orphaned, you can still recover its mailbox items with Stellar Converter for OST.
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When the system is offline due to connection issues, OST allows working in the offline mode as the copy of the mailbox is available locally that provides instant access to data.
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OST files are the replica of user mailboxes stored on Exchange Server. When Outlook is used with Exchange Cached Mode ON, it keeps the mailbox data in a local OST file.
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