How to Install Mailcow on OpenBSD

Mailcow is a mail server suite that allows you to host your mail server on your own infrastructure. OpenBSD is a secure and reliable operating system that is capable of running Mailcow. In this tutorial, we will guide you through the step-by-step process of installing Mailcow on OpenBSD.

Prerequisites

OpenBSD server
Root user access
Basic knowledge of OpenBSD command line

Installation Steps

First, we need to install Git on our OpenBSD server. Run the following command to install Git:
```
pkg_add git
```

Clone Mailcow repository using Git:

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

Change working directory to the cloned repository:
```
cd mailcow-dockerized
```
Run the following command to initialize Mailcow:
```
MAILCOW_HOSTNAME=mailcow.example.com \
MAILCOW_TZ=Europe/London \
./generate_config.sh
```
Replace mailcow.example.com with your own domain name and Europe/London with your own timezone.
Start the installation process by running:
```
docker-compose up -d
```
Wait for the installation to complete. Once the installation is complete, run the following command:
```
docker ps
```
This will show you all the running Docker containers.
Test your Mailcow installation by accessing https://mailcow.example.com in your browser. Replace mailcow.example.com with your own domain name.

Congratulations! You have successfully installed Mailcow on OpenBSD. You can now start configuring your mail server and start sending and receiving emails.