Here is the free tool to import OST file to Zimbra desktop and simply Export all mailbox items such as emails, notes, tasks, appointments, journals, etc from the OST file to Zimbra named eSoftTools OST to PST Converter Software. It is also able to instantly save OSt file inner database to various file formats such as PST, EML, EMLX, MSG, HTML, etc. For a quick conversion of the OST file, you can try a free demo version of this software. This Demo version will easily export the selected 25 items from each mailbox of the OST file into PST free of cost.

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