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mailcow: dockerized project preview
CommunicationAlternative to Google WorkspaceAlternative to Microsoft 365Alternative to Fastmail

mailcow: dockerized

The complete open-source, modern groupware with Docker and Dovecot.

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LicenseGPL-3.0
GitHub stars7.5k
Last commit1 weeks ago
Tags6 topics
CommunicationRspamdDocker MailDovecotPostfixMail Server
Overview

Why consider mailcow: dockerized?

mailcow: dockerized is a complete open-source mailserver suite. Built with Postfix, Dovecot, SOGo webmail, Rspamd spam filtering, ClamAV antivirus, and ACME Let's Encrypt certificates, it deploys a full enterprise mail server in minutes.

Guided learning

Learn mailcow: dockerized by building

Practical setup notes, real use cases, and copy-ready examples in one focused guide.

1 min read 2 sections
In this guide2 sections

Overview of mailcow

mailcow orchestrates multi-domain email hosting, CalDAV/CardDAV sync, DKIM/DMARC DNS records, and automated rate limiting.

Quickstart

bash
1git clone https://github.com/mailcow/mailcow-dockerized
2cd mailcow-dockerized
3./generate_config.sh
4docker compose up -d

mailcow is licensed under the GNU General Public License v3.0 (GPL-3.0).

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mailcow: dockerized FAQs

mailcow: dockerized is listed as a Communication tool on TiloBox. Review the overview, features, and official documentation on this page to decide whether it solves your specific workflow.

Start with the project's GitHub repository and official website for supported installation and deployment instructions. Test the setup with representative data or a small project before rolling it out more widely.

mailcow: dockerized is listed under the GPL-3.0 license. Read the complete license text and the project's notices before using, modifying, or distributing the software.

Production readiness depends on your requirements. Review maintenance activity, security practices, documentation, backup and upgrade procedures, and compatibility with your stack; then validate it in a non-production environment.

mailcow: dockerized is listed as an alternative to Google Workspace. Compare the core workflow, deployment model, integrations, and licensing against your must-have requirements before switching.