Mailu

Mailu

Mailu offers a robust mail server solution through a collection of Docker images, emphasizing simplicity and user-centric features. It supports standard protocols like IM... Mailu offers a robust mail server solution through a collection of Docker images, emphasizing simplicity and user-centric features. It supports standard protocols like IMAP and SMTP, alongside advanced functionalities such as custom routing and domain aliases. With strong security measures, including enforced TLS and anti-spam tools, Mailu prioritizes both user freedom and data protection. The platform is entirely free software, fostering community contributions and continuous improvement.

Top Mailu Alternatives

1 Courier

Courier

The Courier mail transfer agent (MTA) serves as an integrated mail and groupware server, supporting ESMTP, IMAP, POP3, and more...

Why Courier as a Mailu alternative?

  • Compiles from source on POSIX systems
  • Authenticates virtual accounts via LDAP, unlike Mailu's MySQL/PostgreSQL
Double Precision, Inc. From France
2 mailcow

mailcow

mailcow is a user-friendly, open-source groupware and email suite built on Docker, leveraging established components for a seamless email server...

Why mailcow as a Mailu alternative?

  • Ships SOGo groupware, while Mailu avoids unrelated groupware
  • Runs spam filtering on Rspamd versus Mailu's antispam features
  • Publishes update changelogs for each release
3 iRedMail

iRedMail

Deploying a full-featured, open-source mail server takes mere minutes with this solution, which integrates essential components and best practices. Users...

Why iRedMail as a Mailu alternative?

  • Runs on Linux and BSD distributions, rather than Mailu's Docker images
  • Ships calendars, contacts and ActiveSync through SOGo, while Mailu lacks them
  • Provides professional tech support
  • Also offers a paid admin edition iRedAdmin-Pro
4 Poste.io

Poste.io

Poste.io allows users to set up a fully functional mail server within five minutes, simplifying the installation process through automation....

Why Poste.io as a Mailu alternative?

  • Ships as one container, rather than Mailu's set of Docker images
  • Free edition covers personal use only
  • Keeps users in one SQLite file, unlike Mailu's external databases
analogic From Czech Republic
5 Modoboa

Modoboa

Modoboa empowers users to establish their own secure email servers in under 10 minutes, eliminating reliance on conventional providers. It...

Why Modoboa as a Mailu alternative?

  • Uses one installer for all components, rather than Mailu's Docker images
  • Claims under 10-minute installs
  • Offers paid installation and maintenance help, while Mailu is free software
Modoboa
6 Citadel

Citadel

Citadel is an innovative platform that enables seamless email, collaboration, groupware, and content management tailored for both local hardware and...

7 Cyrus IMAP

Cyrus IMAP

Cyrus IMAP serves as a robust email, contacts, and calendar server, renowned for its speed and security. It supports CardDAV...

The Cyrus Team
8 Dovecot Pro

Dovecot Pro

Dovecot Pro stands out as a premier email backend, chosen by leading Telcos, ISPs, and Hosters. Its innovative Palomar architecture...

Open-Xchange From Germany
9 Zentyal

Zentyal

Zentyal serves as an effective alternative to Windows Server®, seamlessly integrating with Microsoft Active Directory® without disrupting users. It provides...

Zentyal From Spain
10 OpenSMTPD

OpenSMTPD

OpenSMTPD 7.6, released on October 13, 2024, is a robust, free implementation of the server-side SMTP protocol, adhering to RFC...

11 Mercury Mail Transport System

Mercury Mail Transport System

The Mercury Mail Transport System functions as an efficient mail server, managing incoming and outgoing emails for users within a...

Pegasus
12 Horde

Horde

The latest release of Horde Groupware enhances usability with a fresh design and improved mobile support, allowing seamless access to...

Horde LLC From United States
13 Exim

Exim

Exim is a versatile mail transfer agent (MTA) designed for Unix-like systems, offering robust mail routing and extensive incoming mail...

The Exim MTA From United States
14 GMS (Gordano Messaging Suite)

GMS (Gordano Messaging Suite)

For growing businesses seeking reliable email solutions, GMS offers a straightforward approach without the confusion of jargon. With decades of...

Gordano From United Kingdom
15 Dovecot

Dovecot

Dovecot Pro is a powerful email server platform designed for dynamic scalability and high performance. It optimizes hardware utilization and...

Top Mailu Features

  • Docker-based deployment
  • Free and open-source
  • Standard email server support
  • IMAP and SMTP protocols
  • Advanced email management features
  • Domain aliases and custom routing
  • Multiple webmail interfaces
  • User-friendly administration interface
  • Auto-reply and auto-forward options
  • Global admin capabilities
  • Per-domain delegation support
  • Built-in quotas for users
  • Enforced TLS security
  • DANE and MTA-STS compliance
  • Automated Let's Encrypt integration
  • Outgoing DKIM signing
  • Integrated anti-virus scanning
  • Snuffleupagus protection layer
  • Comprehensive anti-spam measures
  • Detailed version-specific documentation

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