The best way to recover or retrieve Thunderbird mailbox items including emails, contacts, calendars, notes, tasks, journals, etc to Outlook is to use an authenticate Thunderbird to Outlook Converter software. This utility have capability to recover corrupted, damaged or inaccessible Thunderbird files in Outlook without any damage of data. The software is compatible with Outlook 2019, 2016, 2013, 2010 and all earlier versions. The tool also available free demo version to all new users.
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https://www.zooksoftware.com/thunderbird-to-outlook/
