Stalwart Mail & Collaboration Server
Stalwart is an innovative open-source mail and collaboration server designed to revolutionize email infrastructure with a focus on security, speed, and scalability. Built in Rust for memory safety, it integrates multiple components into a single binary, simplifying configuration and deployment compared to traditional setups. Stalwart supports modern protocols like JMAP alongside legacy IMAP, SMTP, and POP3, ensuring compatibility and future-readiness.
Key Features
- All-in-One Platform: Combines email server, MTA, anti-spam, and collaboration tools (calendars, contacts, file storage) with unified configuration.
- Enhanced Security: Offers encryption-at-rest (S/MIME, OpenPGP), strong transport security (DANE, MTA-STS), and proactive measures like DMARC, DKIM, and SPF.
- High Flexibility: Features Sieve scripting, multi-language search, dynamic configuration, and diverse storage options for adaptability.
- Scalability: Designed to handle millions of mailboxes with load balancing, fault tolerance, and modern storage backends like FoundationDB.
- Collaboration Tools: Includes CalDAV, CardDAV, and WebDAV support for seamless team coordination across devices.
Use Cases
Stalwart is ideal for organizations seeking a secure, scalable email solution, from small businesses to large enterprises. It suits IT administrators and developers looking for a self-hosted, customizable platform that replaces fragmented legacy systems. Whether for secure corporate communication or community-driven projects, Stalwart provides a robust foundation with enterprise and community editions to match diverse needs.
