I consider using the eSoftTools PST to MBOX Converter Software if you're unsure how to "Convert PST to MBOX." It uses a very fast and clean graphical interface to provide smooth PST to MBOX file conversion. PST files in both ANSI and UNICODE formats can be converted. Both new and old versions of Microsoft Outlook are supported by the software. Customers who have purchased PST to MBOX Converter are entitled to a free demo that allows them to move up to 25 emails from each folder.
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