Convert Zimbra to Exchange Server is simple. The procedure is as follows:
• Download and install a tool for convert Zimbra to Exchange Server.
• Open the application and enter the server name, username, and password for your Zimbra account.
• Choose the data items, such as emails, contacts, calendars, and tasks, that you want to convert to Exchange Server.
• Give your Exchange Server account subtleties, for example, the administrator email address and password.
• Map the Zimbra and Exchange Server information things and check the settings.
• Start the conversion process and wait for the tool to complete the conversion.
• After the conversion is finished, sign in to your Exchange Server record and check assuming that all your Zimbra information is effectively moved.
More details:
https://www.kdetools.com/zimbra/exchange/