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Stalwart

Stalwart is an open-source, all-in-one email server that unifies JMAP, IMAP (Internet Message Access Protocol), and SMTP (Simple Mail Transfer Protocol) in a…

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  • Tools & Utilities
Stalwart is an open-source, all-in-one email server that unifies JMAP, IMAP (Internet Message Access Protocol), and SMTP (Simple Mail Transfer Protocol) in a single self-contained package. It lets homelabbers and small teams self-host secure, fast, and scalable mail and collaboration services without stitching together separate components.

Platform availability

Available on 5 of 9 platforms

Health score?A 0-100 score computed nightly from four factors: maintained (40%: recent commits and steady activity), popular (25%: GitHub stars, log scale), easy to install (20%: platforms, install notes, setup guides, Docker image) and light to run (15%: minimum RAM, ARM support). When the source code has been checked, a fifth factor, security check (20%: automated scan for committed secrets, unsafe desktop-app settings, known-vulnerable dependencies and project hygiene; any serious finding caps it at 20), is added. Factors without data are left out and the rest are rescaled.

39/100 Low

Maintained
0GitHub repository no longer exists
Popular
No data
Easy to install
755 install platforms, install notes, Docker image
Light to run
95512 MB minimum RAM, runs on ARM

Based on 3 of 4 factors.

Availability: platform listings confirmed today, links checked 13 days ago

No GitHub repository data collected yet.

Checked 14 days ago - source: GitHub (BigBearTechWorld/stalwart-mail)

Resources & Compatibility

Minimum requirements: 512 MB RAM, 1 CPU core(s), 10 GB disk. ARM (e.g. Raspberry Pi) is supported.

Checked 14 days ago - source: Docker Hub image tags and published docs

First-install notes

  • Administrator credentials Run `docker logs stalwart` after the first start to print the generated administrator account and password. source

Fetched 5 days ago - each note links to its source

Alternatives (3)

  • Postfix - Postfix is a mail transfer agent (MTA) that routes and delivers electronic mail.
  • docker-mailserver - A production-ready, full-featured mail server that runs in a single Docker container, bundling SMTP, IMAP, LDAP, anti-spam, antivirus, and…
  • mailcow: dockerized - mailcow is a mail server suite based on Dovecot, Postfix, SOGo, Rspamd and other open source software, that provides a modern Web UI for ad…

Checked 11 days ago - source: AlternativeTo

Common questions

Will existing mail and calendar clients work with Stalwart?

Yes. It natively supports JMAP, IMAP, POP3, SMTP, CalDAV, CardDAV, and WebDAV.

Do I need a separate anti-spam system for Stalwart?

No. Stalwart includes spam and phishing protection with a statistical filter, public blocklists, sender reputation, and AI-driven analysis, and it does not require an extra daemon.

Can Stalwart serve email, calendars, contacts, and shared files from one server?

Yes. It provides mail plus CalDAV, CardDAV, and WebDAV for calendars, contacts, and shared files in the same server.

Can Stalwart be run as a multi-node deployment?

Yes. It can run as one node or as a cluster across regions.

Answers sourced from stalw.art

Community

Collected 9 days ago - public community threads