sudo install fail2ban
sudo install ufw
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
sudo apt install curl git -y
su
curl -sSL https://get.docker.com/ | CHANNEL=stable sh
systemctl enable --now docker
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
su
cd /opt
git clone https://github.com/mailcow/mailcow-dockerized
cd mailcow-dockerized
./generate_config.sh
docker-compose pull
docker-compose up -d
Don't panic is automatic, sometimes it just takes a little more time ^^