When an employee leaves, the usual offboarding steps are to disable the account, remove the licence and delete the mailbox. The problem starts weeks later, when someone asks for an old email thread, and the only copy left is an OST file sitting on the former employee's laptop.
This guide covers what that file is, why Outlook can't open it anymore, and how to recover the data safely.
Why the OST...
Microsoft Outlook uses PST files to store mailbox data such as emails, attachments, contacts, calendars, and other Outlook information. When a PST file becomes corrupted, Outlook may display errors, fail to open the file, or show missing mailbox data.
PST corruption can happen for several reasons, including improper Outlook shutdowns, oversized data files, storage problems, software issues, or...
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