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.
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---
title: "Stalwart All-in-One Mail and Collaboration Server"
description: "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."
verification: "security_reviewed"
source: "https://github.com/stalwartlabs/stalwart"
category:
- "Calendar, Email & Productivity"
framework:
- "Multi-Framework"
tool_ecosystem:
github_repo: "stalwartlabs/stalwart"
github_stars: 12164
---
# 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
Choose whichever fits your setup:
1. Copy this skill folder into your local skills directory.
2. Clone the repo and symlink or copy the skill into your agent workspace.
3. Add the repo as a git submodule if you manage shared skills centrally.
4. Install it through your internal provisioning or packaging workflow.
5. Download the folder directly from GitHub and place it in your skills collection.
## Source
- [Agent Skill Exchange](https://agentskillexchange.com/skills/stalwart-mail-collaboration-server/)
