Stalwart
Open-source mail & collaboration server with JMAP, IMAP, SMTP and anti-spam
AI Summary
Stalwart is an open-source mail and collaboration server developed in Rust that combines MTA, message store, anti-spam, calendar and contacts in a single application. The tool supports modern protocols like JMAP as well as IMAP, SMTP, CalDAV and CardDAV with comprehensive security features. It is designed for businesses that need a scalable, secure and easy-to-manage email infrastructure.
✓ Pros
- + All-in-one solution without complex integration of multiple components
- + Developed in Rust for high memory safety and performance
- + Comprehensive security features with encryption, DANE, MTA-STS and ACME
✗ Cons
- − Relatively new to the market with a smaller community than established alternatives
- − Setup and migration require technical know-how for complex mail infrastructures
Use Cases
- → Operating a company-owned email infrastructure with modern protocols
- → Self-hosted collaboration platform with calendar, contacts and file sharing
- → Spam and phishing protection with DMARC, DKIM, SPF and integrated filtering
- → Scalable mail server solution for millions of mailboxes with load balancing
Who is it for?
Ideal for system administrators, IT teams and businesses looking for a modern, secure and scalable self-hosted email and collaboration solution.
