Try Zimbra to Office 365 Converter tool basically convert Zimbra files to some file formats such as PST, MBOX, EML, EMLX, vCard, vCal, HTML, Exchange Server, etc. This transfer tool simply convert all Zimbra to Office 365 account. This application also has a feature to split files and transfer them into parts, creating many small PST files without deleting or damaging the files. Read More: https://www.kdetools.com/zimbra/office-365.html
