Zimbra Desktop Alternatives for Online

Microsoft Outlook is a comprehensive personal information manager designed for managing email, contacts, calendars, and tasks.

OpenProject is a powerful, web-based open-source project management software designed for teams of all sizes. It offers comprehensive tools for managing projects, tasks, teams, and communication in one centralized platform. Ideal for organizations prioritizing collaboration, flexibility, and data control.

Feng Office is a robust open-source web-based platform designed to enhance team collaboration and productivity. It integrates project management, task tracking, document management, and CRM capabilities into a single solution, catering to businesses of various sizes.

AOL Mail is a free web-based email service offering reliable communication tools, generous storage, and integrated features like calendar and cloud storage, suitable for individuals and small businesses seeking a straightforward email solution.