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Free mailcow: dockerized Alternatives

The best free alternative to mailcow: dockerized is Zimbra Collaboration Suite, which is also Open Source. If that doesn't suit you, our users have ranked more than 10 alternatives to mailcow: dockerized and 11 is free so hopefully you can find a suitable replacement. Other interesting free alternatives to mailcow: dockerized are Mail-in-a-box, hMail Server, Proxmox Mail Gateway and Lightmeter.

mailcow: dockerized alternatives are mainly Mail Servers but may also be WebMail Providers or Email Marketing Services. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of mailcow: dockerized.
This page was last updated Sep 23, 2021
  • FreeOpen Source
  • Linux
  • Self-Hosted

mailcow is a mail server suite based on Dovecot, Postfix, SOGo, Rspamd and other open source software, that provides a...

Learn more about mailcow: dockerized

  1. Zimbra Collaboration is an open, secure collaboration tool for email, calendaring, tasks and more. With the most innovative web application available today, Zimbra boosts the productivity of users on any desktop and dramatically reduces TCO compared to legacy platform vendors.

  2. Mail-in-a-box

    • FreeOpen Source
    • Self-Hosted
    • Roundcube

    Easy-to-deploy mail server.



  3. hMailServer is a free e-mail server for Microsoft Windows. Its used by Internet service providers, companies, governments, schools and enthusiasts in all parts of the world.

  4. Proxmox Mail Gateway

    • FreemiumOpen Source
    • Linux
    • Self-Hosted

    Proxmox Mail Gateway is the leading open-source email security solution helping you to protect your mail server against all email threats the moment they emerge.

  5. Lightmeter

    • FreeOpen Source
    • Linux
    • Self-Hosted

    Managing mailservers without delay or disruption is hard. Lightmeter Open Source Mailops monitoring that saves you time and money.



  6. iRedMail

    • FreemiumOpen Source
    • Linux
    • BSD
    • Self-Hosted

    A fully fledged, free email server solution, an open source project (GPL v2).

  7. Modoboa

    • FreeOpen Source
    • Linux
    • Self-Hosted

    Modoboa is a mail hosting and management platform including a modern and simplified Web User Interface. It provides useful components such as an administration panel or a webmail.

    No screenshots yet
    Almost everyone thinks Modoboa is a great alternative to mailcow: dockerized.
  8. Mailu

    • FreeOpen Source
    • Linux
    • Self-Hosted

    Mailu is a simple yet full-featured mail server as a set of Docker images. It is free software (both as in free beer and as in free speech), open to suggestions and external contributions.

    No screenshots yet
  9. Postfix Admin

    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Online

    Postfix Admin is a web based interface used to manage mailboxes, virtual domains and aliases. It also features support for vacation/out-of-the-office messages.

    No screenshots yet
  10. WildDuck

    • FreeOpen Source
    • Self-Hosted

    WildDuck is a scalable no-SPOF IMAP/POP3 mail server. WildDuck uses a distributed database (sharded + replicated MongoDB) as a backend for storing all data, including emails.

Showing 10 of 11 alternatives