You have access to Outlook, and the original account is still active; you can go to File > Open & Export > Import/Export, then choose Export to a file > Outlook Data PST File. This lets you export your mailbox data into a PST file. However, this method doesn’t work if the OST file is corrupted or the Outlook profile isn’t connected. Use a Professional Tool, Softaken OST to PST Converter OST file is orphaned, corrupted, or too large, the manual method might fail. In that case, it’s best to use the Softaken OST to PST Converter. It’s a user-friendly tool that helps you convert OST files to PST format quickly and safely. You don’t even need Outlook installed. It supports all MS Outlook versions and keeps your emails, attachments, and folder structure intact during the conversion. You can try the free demo version and explore the software.

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To convert OST to MBOX files try the GainTools OST to MBOX Converter. It allows users to easily export OST data including emails and attachments into MBOX format without data loss. It supports all major Outlook OST files and converts them to MBOX compatible with Thunderbird, Apple Mail and more. It offers a free demo version to test its features and convert a limited number of items, making it the best option for personal or trial use before upgrading. Simple interface and no technical skills required.

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If you are looking for a free method to convert OST to MBOX files you can try DataVare OST to MBOX Converter. It offers a free trial version that allows users to convert a limited number of items which is perfect for testing the tool. The software is easy to use, supports all OST file types and maintains data integrity during conversion. It is compatible with all versions of Windows and works well with email clients like Thunderbird, Apple Mail and others. For complete conversion you can consider the full version but the free trial is a good starting point.

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The The OST to PST Converter is a complete tool that helps you change OST files to MBOX format. It also supports other formats like PST, EML, MSG, EMLX, TXT, PNG, and more. You can convert multiple OST files to MBOX at the same time. The tool lets you choose specific items or folders to convert. It also shows a preview of the mailbox items before starting the process. There are helpful filters too, like setting a date range or removing duplicate emails. This tool works with all versions of Outlook and supports OST files from Exchange Server, Outlook, and IMAP.

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If you are looking for a useful tool to convert OST files to MBOX format then i have a better option. You can try Advik OST to MBOX Converter which is a top-notch tool for converting OST files to MBOX format without any data loss. It allows users to preview the entire OST file database before conversion. The software enables users to convert OST files to various other file formats other than MBOX files including PST, EML, PDF, MSG, DOC, HTML etc. Users can export also individual OST emails to MBOX format and use various meta searching options like To, From, Subject, time, etc., to convert specific filtered databases. The application provides a flawless MBOX file that can be imported into any email client platform that supports MBOX files.

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