What is the best way to import Thunderbird mail into Outlook? Don’t worry, you can use MBOX to PST Converter to quickly import multiple MBOX files into a single PST format. By inserting an entire mailbox containing MBOX objects, this should be feasible. It is well-equipped to migrate all types of email clients, including Mozilla Thunderbird, Entourage, Eudora, and Apple Mail, to the MS Outlook PST format file.
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