Several features are:
• This software also import Zimbra files to Office 365 and additional file formats such as PST, MBOX, MSG, EML, EMLX, PDF, HTML, etc.
• You can easily extracts all the necessary mail data like To, Bcc, Cc, Sent, From, Received, Attachments, etc.
• This tool easily import Zimbra file to Office 365 without losing any data.
Read More: http://www.zimbra-converter.com/office-365/