You need Docker and Docker Compose. **1\.** Learn how to install [Docker](https://docs.docker.com/engine/installation/linux/) and [Docker Compose](https://docs.docker.com/compose/install/). Quick installation for most operation systems: - Docker ``` curl -sSL https://get.docker.com/ | sh ``` - Docker-Compose ``` curl -L https://github.com/docker/compose/releases/download/$(curl -Ls https://www.servercow.de/docker-compose/latest.php)/docker-compose-$(uname -s)-$(uname -m) > /usr/local/bin/docker-compose chmod +x /usr/local/bin/docker-compose ``` Please use the latest Docker engine available and do not use the engine that ships with your distros repository. **2\.** Clone the master branch of the repository ``` git clone https://github.com/mailcow/mailcow-dockerized && cd mailcow-dockerized ``` **3\.** Generate a configuration file. Use a FQDN (`host.domain.tld`) as hostname when asked. ``` ./generate_config.sh ``` **4\.** Change configuration if you want or need to. ``` nano mailcow.conf ``` If you plan to use a reverse proxy, you can, for example, bind HTTPS to 127.0.0.1 on port 8443 and HTTP to 127.0.0.1 on port 8080. You may need to stop an existing pre-installed MTA which blocks port 25/tcp. See [this chapter](https://mailcow.github.io/mailcow-dockerized-docs/firststeps-local_mta/) to learn how to reconfigure Postfix to run besides mailcow after a successful installation. **5\.** Pull the images and run the composer file. The parameter `-d` will start mailcow: dockerized detached: ``` docker-compose pull docker-compose up -d ``` Done! You can now access **https://${MAILCOW_HOSTNAME}** with the default credentials `admin` + password `moohoo`. The database will be initialized right after a connection to MySQL can be established.