Open Source Alternatives to IceWarp Mail Server

A collaboration platform that integrates business email, team messaging, video conferencing, and real-time document editing into a single interface. It provides tools for managing inboxes with custom domains, scheduling via shared calendars, and storing files in a cloud environment. The software includes ChatGPT integration for content generation and summarization. It is designed for businesses of various sizes, from startups to large public organizations, and is available as either a cloud-based service or a self-hosted solution. Users can access the platform through web browsers, desktop clients, and mobile applications. The system also features a customizable dashboard that functions as a virtual desktop, allowing users to pin notes and files for quick access. It supports video and audio meetings with a dedicated webinar mode for up to 1,000 attendees. The platform is developed in the EU and supports deployment on private hardware for full data control.

Whether you want to cut software costs or escape vendor lock-in, these open source alternatives to IceWarp Mail Server give you an option you fully own. You can self-host them, so your data stays on infrastructure you control. This page lists 1 open source alternative to IceWarp Mail Server. The most popular is Dovecot. It uses the MIT license and ships an official Docker image.