# Stalwart

> Secure and scalable mail server with JMAP, IMAP, and SMTP support

- Canonical URL: https://www.fosshunter.com/tools/stalwart
- JSON export: https://www.fosshunter.com/tools/stalwart.json
- Website: https://github.com/stalwartlabs/stalwart
- Category: Email & Communication
- Open source: yes
- Self-hostable: yes
- Verified listing: no
- Featured: no
- Published at: 2026-04-08T15:32:53+00:00
- Catalog revision: `1013879815`

## Repository metrics (point-in-time)

- Repository: https://github.com/stalwartlabs/stalwart
- Stars: 15716
- Forks: 1040
- Open issues: 45
- License: unknown
- Last push: 2026-11-04T08:22:14+00:00
- Metrics observed at (synced_at): 2026-11-04T11:16:40+00:00
- Archived: no

Tags: mail server, email, pop3, smtp, imap, jmap
Tech stacks: docker, rust, Sieve

## Features
- Supports modern protocols including JMAP, IMAP, SMTP, and POP3. *(highlighted)*
- Provides built-in collaboration tools via CalDAV, CardDAV, and WebDAV. *(highlighted)*
- Written in Rust to ensure high performance, security, and scalability. *(highlighted)*

## Description

Stalwart is an open-source mail and collaboration server designed for security and scalability. It supports JMAP, IMAP, SMTP, and POP3, along with CalDAV, CardDAV, and WebDAV protocols, providing a complete email and calendar solution.

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Source: [FOSSHunter — Stalwart](https://www.fosshunter.com/tools/stalwart) — cite `synced_at` and the catalog revision when quoting metrics.
Interpretation rules: https://www.fosshunter.com/llms-full.txt