docs/Servers/Email/Mailcow.md

Purpose

The purpose of this document is to illustrate how to deploy Mailcow in a dockerized format.

!!! note "Assumptions" It is assumed that you are deploying Mailcow into an existing Ubuntu Server environment. If you are using a different operating system, refer to the official documentation.

Setting Up Docker

Go ahead and set up docker and docker-compose with the following commands:

sudo su # (1)
curl -sSL https://get.docker.com/ | CHANNEL=stable sh # (2)
apt install docker-compose-plugin # (3)
systemctl enable --now docker # (4)

1. Make yourself root.
2. Install Docker
3. Install Docker-Compose
4. Make docker run automatically when the server is booted.

Download and Deploy Mailcow

cd /opt
git clone https://github.com/mailcow/mailcow-dockerized
cd mailcow-dockerized
./generate_config.sh # (1)
docker compose pull # (2)
docker compose up -d

1. Generate a configuration file. Use a FQDN (host.domain.tld) as hostname when asked.
2. If you get an error about the ports of the nginx-mailcow service in the docker-compose.yml stack, change the ports for that service as follows:

   ports:
     - "${HTTPS_BIND:-0.0.0.0}:${HTTPS_PORT:-443}:${HTTPS_PORT:-443}"
     - "${HTTP_BIND:-0.0.0.0}:${HTTP_PORT:-80}:${HTTP_PORT:-80}"