When an Exchange account is deleted or the server is unavailable, it's not possible to open the Outlook OST file directly. In such situations,
eSoftTools OST to PST Converter software is the best solution. This software easily converts OST files to PST format, which can then be opened in Outlook without any problems. This tool securely recovers emails, contacts, calendars, tasks, and attachments. It also supports corrupted and orphaned OST files and is compatible with all Outlook versions. Its user-friendly interface makes it easy to use, even for beginners.
Read More:- Open an OST file to Outlook