unsubbed.co

Stalwart Mail Server

Stalwart Mail Server is a Rust-based application that provides all-in-one mail server with JMAP, IMAP4, and SMTP support and a wide range of modern features.

Unknown Free stalwartlabs/stalwart · 12K stalw.art Rust 2 deploy options Plugins SSO 2FA LDAP Webhooks

Overview

All-in-one Mail & Collaboration server. Secure, scalable and fluent in every protocol (IMAP, JMAP, SMTP, CalDAV, CardDAV, WebDAV). Open-source mail and collaboration server with JMAP, IMAP4, POP3, SMTP and WebDAV support and a wide range of modern features. Written in Rust and designed to be secure, fast, robust and scalable. Secure, scalable mail & collaboration server with comprehensive protocol support 🛡️ (IMAP, JMAP, SMTP, CalDAV, CardDAV, WebDAV) The project has 12K+ GitHub stars.

Key Features

Source: GitHub README

  • Email server with complete protocol support:
  • JMAP for Mail server.
  • JMAP for Sieve Scripts.
  • WebSocket, Blob Management and Quotas extensions.
  • IMAP4rev2 and IMAP4rev1 server.
  • ManageSieve server.
  • Numerous extensions supported.
  • POP3 server.
  • STLS and SASL support as well as other extensions.
  • SMTP server with built-in DMARC, DKIM, SPF and ARC support for message authentication.

Normalized Features

Source: tool-features-normalized.json

docker, elasticsearch, kubernetes, ldap, mysql, plugins, postgresql, redis, sqlite, sso, two factor auth, webhooks.

Deploy

Docker

Self-host with Docker Compose

Coolify

One-click via Coolify panel
elestio

Elestio

Managed hosting from $9/mo
pikapods

PikaPods

Simple managed hosting

Features

Authentication & Access

  • LDAP / Active Directory
  • Single Sign-On (SSO)
  • Two-Factor Authentication

Integrations & APIs

  • Plugin / Extension System
  • Webhooks

Category

Email & Newsletters (73) Email Servers (34)

Replaces

Gmail
30 tools
microsoft-outlook
Microsoft Outlook
24 tools

Related Email & Newsletters Tools

View all 73 →

Novu

39K

The open-source notification infrastructure for modern products. Multi-channel delivery turned into a single <Inbox /> component.

email

Listmonk

19K

Send e-mail campaigns and transactional e-mails. High performance and features packed into one app

email marketing AGPL-3.0 Easy to deploy
d

docker-mailserver

18K

A fullstack but simple mail-server (SMTP, IMAP, LDAP, Anti-spam, Anti-virus, etc.) using Docker

email MIT

Postal

16K

A fully featured open source mail delivery platform for incoming & outgoing e-mail

email MIT

Mail-in-a-Box

15K

Take back control of your email with this easy-to-deploy mail server in a box

email CC0-1.0

Billion Mail

14K

Released under AGPL-3.0, Billion Mail provides email marketing platform on self-hosted infrastructure.

email AGPL-3.0