Mailcow Cold Standby
Automated backup of a mailcow-dockerized instance to a Hetzner storage box over rsync and SSH.
ShellrsyncSSH
A mail server is one of those things you only realise you should have backed up after it is gone. This keeps a cold standby copy off site so a failure does not mean lost mail.
What it does
- Backs up a mailcow-dockerized instance to a Hetzner storage box using rsync over SSH.
- Runs unattended so the standby stays current without manual steps.
- Keeps the transfer efficient by only moving what changed.
Why it matters
Cheap, off-site, automated backups for self-hosted email. The kind of thing that is boring right up until the day it saves you.