Categories / Communication - Email - Complete Solutions
Stalwart Mail Server
All-in-one mail server with JMAP, IMAP4, and SMTP support and a wide range of modern features.
- Website
- https://stalw.art
- Source code
- https://github.com/stalwartlabs/stalwart
- GitHub stars
- 15,562
- Repository activity
- 28 October 2026
- Latest release
- v1.0.1, 28 October 2026
- Health
- Active From the repository record in this build
- License
- AGPL-3.0
- Platforms
- Rust, Docker
More in Communication - Email - Complete Solutions
docker-mailserver
Production-ready fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.) running inside a container. Only configuration files, no SQL database.
Replaces Amazon SES, Fastmail, Gmail, and 2 more
19,710 stars Active
26 Oct 2026 v16.0.1
Postal
Complete and fully featured mail server for use by websites & web servers.
Replaces Amazon SES, Mailgun, SendGrid
16,910 stars Active
1 Oct 2026 3.3.7
Mail-in-a-Box
Turns any Ubuntu server into a fully functional mail server with one command.
Replaces Gmail, Outlook.com, Proton Mail
15,448 stars Active
22 Oct 2026 v77
Mailcow
Mail server suite based on Dovecot, Postfix and other software, that provides a modern Web UI for administration.
Replaces Amazon SES, Fastmail, Gmail, and 5 more
13,722 stars Active
21 Oct 2026 2026-10
Mailu
Simple yet full-featured mail server as a set of Docker images.
7,593 stars Active
31 Oct 2026 2024.06.67
