You can try Zimbra to Exchange Server Converter tool to export Zimbra to Exchange Server account. This tool easily import multiple file formats such as PST, MBOX, OLM, EML, EMLX, HTML, and etc. This application has many superior features like Fast conversion of data, Corrupted file also transformed securely, and Meta properties email get transfer etc.

Read More:  https://www.kdetools.com/zimbra/exchange/