You can use third party application like KDETools Zimbra to Outlook Converter tool. Several features are:
• This application also export Zimbra files to Outlook and additional file formats such as MBOX, MSG, EML, EMLX, PDF, HTML, etc.
• It extracts all the necessary mail data like To, Bcc, Cc, Sent, From, Received, Attachments, etc.
• This commercial tooleasily export Zimbra file to Outlook without losing data.
This software also support Windows Vesrion
Read More:
http://www.zimbra-converter.com/
