Zimbra Connector for Microsoft Outlook up to Outlook 2019 (For Windows only)

The Zimbra Connector for Outlook (ZCO) provides real time, two-way synchronization of email
messages, folders, tags, address books, tasks, and calendaring between Outlook and your Zimbra
account.
ZCO stores a copy of your account data on your computer in a database called a ZDB. This allows
you to work with your data even when you are not connected to the Zimbra server.

This guide covers installation, configuration, synchronization and other features of ZCO