Stalwart Collaboration Server

Stalwart Mail Server was created to address the challenges of email self-hosting by offering a modern, secure, and easy-to-maintain solution. With support for JMAP, IMAP4, POP3, and SMTP, it provides individuals and businesses with a powerful, privacy-focused alternative to third-party email providers. Now Stalwart is expanding beyond email with the introduction of Stalwart Collaboration Server, a new component that will complement Stalwart Mail Server and transform the platform into a complete, self-hosted collaboration suite. Stalwart Collaboration Server will provide built-in support for calendars using CalDAV and JMAP for Calendars, contacts management through CardDAV and JMAP for Contacts, and file storage and sharing via WebDAV and JMAP for File Management.

By combining email, calendaring, contact management, and file storage in one open-source solution, Stalwart will offer a powerful alternative to proprietary platforms like Microsoft Exchange. Organizations will be able to self-host their entire collaboration stack while maintaining full control over their data, ensuring privacy, security, and scalability. Stalwart Collaboration Server will extend the project’s mission to modernize, democratize, and decentralize essential communication and collaboration tools. With this expansion, businesses and individuals will no longer need to rely on closed-source, vendor-locked solutions. Instead, they will have access to a fully integrated, scalable, and privacy-focused platform that empowers them to communicate and collaborate on their own terms.