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Stalwart Mail Server - All-in-one Secure & Scalable Collaboration Platform

A robust, secure, and highly scalable open-source mail and collaboration server supporting all major protocols.

Rust
Added on 2025年6月24日
View on GitHub
Stalwart Mail Server - All-in-one Secure & Scalable Collaboration Platform preview
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Project Introduction

Summary

This project is an all-in-one open-source mail and collaboration server designed to be secure, scalable, and compliant with all modern protocols (IMAP, JMAP, SMTP, CalDAV, CardDAV, WebDAV). It simplifies the deployment and management of essential communication services.

Problem Solved

Managing separate servers for email, calendars, and contacts is complex and inefficient. This project provides a single, unified platform for all essential collaboration services.

Core Features

Protocol Support

Supports IMAP, JMAP, SMTP, CalDAV, CardDAV, and WebDAV for comprehensive access.

Scalability

Designed for horizontal scalability to handle large user bases and high traffic.

Security Focus

Includes built-in security features to protect against common threats.

Extensibility

Provides APIs for integration with other systems and custom development.

Tech Stack

Rust
PostgreSQL
Redis

Use Cases

Stalwart is suitable for various deployments ranging from small teams to large-scale service providers:

Enterprise Self-Hosting

Details

Deploy Stalwart within your organization's infrastructure to manage internal email, calendars, and contacts, ensuring data privacy and security.

User Value

Gain complete control over communication data and tailor the server to organizational needs.

Managed Service & Hosting Providers

Details

Utilize Stalwart as the backend for providing white-label email and collaboration services to multiple customers.

User Value

Offer a competitive, scalable, and reliable suite of collaboration tools under your own brand.

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