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Use the RecoveryTools MBOX to PST Converter Tool to export MBOX files in Outlook PST format from any source form all email clients and orphaned MBOX files with ease on All Mac & Windows devices. It does not require the use of any email client

To convert an inaccessible or orphaned OST file to PST when the Outlook profile is not working, you must use a third-party OST to PST converter software is ToolsBaer for OST to PST Conversion, because you need an active, connected profile to export manually. These tools scan the corrupt or orphan file, let you see the data, and turn it into a PST that you can take with you. The software also has a free demo version that lets users convert the first 25 items in each folder to help them judge how well it works.