Stalwart Mail Server
★ 15.0kA self-hosted alternative to Google Workspace, Office 365, Gmail, Outlook
GNU Affero General Public License v3.0Open Source — No PaywallDocker · Source6+ active committers (12mo)
About
Stalwart is an open-source mail and collaboration server aimed at organizations that need a secure, scalable platform for email and groupware. It combines traditional mail protocols with...
Community Ratings
No ratings yetNew this week
Read recap →Weekly Recap — Oct 2, 2026 – Oct 9, 2026Oct 9, 2026
Features
- JMAP mail server
- IMAP server
- POP3 server
- SMTP server
- CalDAV support
- CardDAV support
- WebDAV support
- spam and phishing filtering
- multi-tenancy
- web-based administration
Details
- Last Updated
- Oct 11, 2026
- Created
- Mar 6, 2023
- Install Methods
- dockersource
- Requirements
- RustRocksDBFoundationDBPostgreSQLMySQLSQLiteS3-compatible storageAzureRedisKafkaRedpandaNATS
- Authentication
- ldapoidc-ssooauthlocal2fa
- API
- RESTWEBSOCKET
- Runtime / Stack
- RustDocker
- Privacy & Independence
- No Cloud RequiredOffline Capable
- User Model
- Multi-UserMulti-Tenant
- Deployment
Deployment: no container deployment found
Tags
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Metadata extracted from README on Mar 25, 2026
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