Zimbra Collaboration Suite Alternatives

Zimbra Collaboration Suite is described as 'Zimbra Collaboration is an open, secure collaboration tool for email, calendaring, tasks and more. With the most innovative web application available today, Zimbra boosts the productivity of users on any desktop and dramatically reduces TCO compared to legacy platform vendors' and is a Mail Server in the office & productivity category. There are more than 25 alternatives to Zimbra Collaboration Suite for a variety of platforms, including Web-based, Linux, Self-Hosted, Windows and Mac apps. The best Zimbra Collaboration Suite alternative is Microsoft 365 Copilot, which is free. Other great apps like Zimbra Collaboration Suite are Google Workspace, Roundcube, mailcow: dockerized and Nextcloud Hub.