When working with new technologies, it's a wonderful idea to use the eSoftTools Outlook PST Recovery Application to import Outlook PST to Zimbra Desktop. It's easy to use when it comes to fixing PST file issues and converting PST to Zimbra (TGZ) files. Every email that contains an attachment will be stored in your Zimbra desktop folders right away. The free demo version, which is available to all users, can also rapidly and efficiently convert a PST file to a Zimbra file containing 25 emails from each PST folder.
For more info:- Import Outlook PST file to Zimbra Desktop