Mailserver Installation

mailserver.md

Fail2Ban

sudo install fail2ban

UFW

sudo install ufw

UFW Settings

sudu ufw default deny incomoing

sudo ufw default allow outgoins

sudo ufw allow 22,25,80,110,143,443,465,587,993,995,4190/tcp

sudo ufw enable

Mailserver

Install curl and git

sudo apt install curl git -y

Install Docker

su

curl -sSL https://get.docker.com/ | CHANNEL=stable sh

systemctl enable --now docker

Install Docker Compose

curl -sSL https://github.com/docker/compose/releases/download/v$(curl -Ls https://www.servercow.de/docker-compose/latest)/docker-compose-$(uname -s)-$(uname -m) > /usr/local/bin/docker-compose

chmod +x /usr/local/bin/docker-compose

Install the mail server

su

cd /opt

git clone https://github.com/mailcow/mailcow-dockerized

cd mailcow-dockerized

./generate_config.sh

Start the mail server

docker-compose pull

docker-compose up -d

Great tutorial, thanks. Why do you install fail2ban when the mailcow installation already provides a fail2ban instance?

mailcow provided fail2ban protects the container interfaces i.e protection for docker, it won't protect the server interfaces .. eg. ssh.. installing fail2ban on the server protects those.