📧 Stalwart is a fast, secure, and scalable open-source server for email, calendars, contacts, and file sharing, built in Rust for top-tier performance and safety.
All-in-One Communication Platform
- Full Email Protocol Support: JMAP, IMAP4, POP3, and SMTP with advanced authentication, security, and filtering.
- Collaboration Tools: CalDAV calendars, CardDAV contacts, WebDAV file storage and sharing.
- Spam & Phishing Protection: AI-powered filtering, DNS blocklists, greylisting, sender reputation tracking, and more.
Powerful Features for Any Scale
- Flexible storage backends: PostgreSQL, MySQL, SQLite, S3, Redis, ElasticSearch, and more.
- Built-in encryption, 2FA, and automated TLS certificates.
- Fault-tolerant, cluster-ready design with Kubernetes and Docker support.
- Rich admin dashboard, real-time monitoring, and user self-service tools.
Whether you're running a small private server or a large enterprise deployment, Stalwart delivers modern, secure, and efficient communication you can trust.
These are the configured external port mappings:
- 10443:443 (HTTPS)
- 10025:25 (SMTP)
- 10465:465 (SMTPS)
- 10587:587 (SMTP Submission)
- 10143:143 (IMAP)
- 10993:993 (IMAPS)
- 14190:4190 (Sieve)
- 10110:110 (POP3)
- 10995:995 (POP3S)
You can find more details on how to properly setup your instance here: https://stalw.art/docs/install/platform/docker/
