Automating Mailcow backups

Mailcow allows you to easily host your own mail server using Docker. Below are the scripts and steps I took to back up my mail server using rclone.

For the scripts to work, you first need to install rclone using the following command.

curl https://rclone.org/install.sh | sudo bash

You now need to set up your rclone remote.

rclone config

Next, you have to download the backup script from the repository. This script will be executed using a cron job.

curl https://codeberg.org/bart/backup-scripts/raw/branch/master/mailcow-backup.sh -o backup.sh

This file also contains the environment variables used to configure the backup script. Change the environment variables at the top of the file for the script to fit your backup plan.

sudo vi backup.sh

Finally, we need to add the backup script to the /etc/crontab file. For me, the backup script runs once a day at 03:00 AM.

0 3 * * * root /root/backup.sh