Top 9 Mailcow Alternatives in 2024

Mailcow and Mailcow alternatives: Mailcow is a collection of software used to run an email server. It includes programs like Dovecot and Postfix, which handle email tasks. Mailcow also has a modern web interface that allows users to manage their emails and server settings easily. It supports both IPv6 and IPv4 communication standards, meaning it can work with different types of internet connections. There are a lot of Mailcow alternatives out there in the industry.

Additionally, it has a feature that generates DKIM (DomainKeys Identified Mail) keys for each domain, which helps with email authentication and security. All these features can be accessed and controlled through a user-friendly web interface. In this article, we will discuss the Mailcow alternatives.

Top Mailcow alternatives:

Here are some of the latest and best alternatives to Mailcow, based on user reviews and the quality of services they offer:


RedMail is a user-friendly and reliable open-source mail suite, that combines a mail server and webmail client. With iRedMail, you can effortlessly set up a feature-rich mail server for free in minutes.
Calendar service 

  • Sender and Recipient Throttling
  • Anti-Spam and Anti-Virus
  • Address Book


iRedMail comes in a free and open-source but its pro edition has paid plans for enterprise users.
iRedAdmin-Pro Pricing

RoundCube is a widely used IMAP web-based email client famous for its use of AJAX (Asynchronous JavaScript and XML) technology. It is open-source and free software that follows the guidelines of the GNU GPL (General Public License), except for the plugins and skins.

  • Calendar module
  • Two-factor authentication
  • Advanced search


Mailcow Alternatives


Zimbra is a full-featured, open-source collaboration suite that provides email, calendar, contacts, and document-sharing capabilities. It offers a web-based interface and supports integration with various clients 

  • Supports IMAP/POP, CalDAV and CarDAV.
  • Integrated antispam & antivirus


Mailu is an uncomplicated yet robust open-source mail server offered as a collection of Docker images. It serves as free email software, known for its simple setup and straightforward maintenance.

  • Authentication 
  • Autoconfiguration
  • IMAP and IMAP+

hMail Server

hMailServer is a free email server for Windows developed by Martin Knafve. It operates as a Windows service and provides administration tools for easy management and backup. It supports IMAP, POP3, and SMTP protocols for email communication.

  • Email standards POP3, SMTP and IMAP4
  • Compatible with most email clients
  • High security 


Get a complete email server solution with advanced anti-spam techniques, built-in webmail, and effortless administration.

  • flexible SMTP server.
  • Spam detection
  • high performance


Get a complete email server solution with advanced anti-spam techniques, built-in webmail, and effortless administration.

  • spam detection system
  • backup mechanisms


Zentyal is an open-source email and groupware solution based on Ubuntu Linux. Zentyal implements the Microsoft Exchange Server protocols on top of standard open-source components to provide native compatibility
Supported protocols: SMTP, POP3, IMAP, CalDAV, CardDAV, SIEVE

  • Webmail
  • Antivirus and mail filter


Simple, modern, lightweight & fast web-based email client. Snappymail is a web-based email client. This is free and open-source software. 

  • IMAP and SMTP protocols including SSL and STARTTLS
  • Filters and vacation message


In conclusion, Mailcow presents a comprehensive suite of software tailored for efficient email server management. Notable components like Dovecot and Postfix take charge of essential email functions, while the user-friendly modern web interface empowers users to effortlessly oversee their emails and server configurations. With compatibility for both IPv6 and IPv4 communication standards, Mailcow accommodates diverse internet connections. Its incorporation of DKIM key generation for individual domains enhances email security and authentication. The amalgamation of these capabilities within the accessible web interface solidifies Mailcow’s position as a versatile and powerful solution for email server operations.

Although this post is about Mailcow alternatives you can also read about WP Ultimo Alternative.

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