# Stalwart All-in-One Mail and Collaboration Server

> Stalwart is an open-source mail and collaboration server written in Rust that provides JMAP, IMAP4, POP3, SMTP, CalDAV, CardDAV, and WebDAV support. It enables agents to deploy and manage self-hosted email infrastructure with built-in spam filtering, DKIM/DMARC/SPF authentication, and full calendar and contact synchronization.

- Skill: `agentskillexchange/stalwart-all-in-one-mail-and-collaboration-server` (Agent Skill)
- Install (CLI): `npx skillmds@latest add agentskillexchange/stalwart-all-in-one-mail-and-collaboration-server`
- Raw SKILL.md: https://api.skillmd.com/api/skills/agentskillexchange/stalwart-all-in-one-mail-and-collaboration-server/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: DevOps & Infra
- Author: agentskillexchange (https://skillmd.com/u/agentskillexchange)
- Updated: 2026-09-08
- Page: https://skillmd.com/skills/agentskillexchange/stalwart-all-in-one-mail-and-collaboration-server

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# Stalwart All-in-One Mail and Collaboration Server

Stalwart is an open-source mail and collaboration server written in Rust that provides JMAP, IMAP4, POP3, SMTP, CalDAV, CardDAV, and WebDAV support. It enables agents to deploy and manage self-hosted email infrastructure with built-in spam filtering, DKIM/DMARC/SPF authentication, and full calendar and contact synchronization.

## Installation

Requirements and caveats from upstream:
- **Kubernetes**, **Apache Mesos** and **Docker Swarm** support for automated scaling and container orchestration.
- [Docker](https://stalw.art/docs/install/platform/docker)

Basic usage or getting-started notes:
- [Linux / MacOS](https://stalw.art/docs/install/platform/linux)
- [Windows](https://stalw.art/docs/install/platform/windows)
- All documentation is available at [stalw.art/docs](https://stalw.art/docs/install/get-started).

- Source: https://github.com/stalwartlabs/stalwart
- Extracted from upstream docs: https://raw.githubusercontent.com/stalwartlabs/stalwart/HEAD/README.md

## Source

- [Agent Skill Exchange](https://agentskillexchange.com/skills/stalwart-mail-collaboration-server/)