Document a proper backup solution

[alexanderadam]

Is your feature request related to a problem? Please describe.

The wiki is great so far! But I guess it's still missing a proper backup solution.
I guess you just have to backup the volumes, or did I miss something?

[jeboehm]

Hi @alexanderadam
yeah, that's right. These volumes are holding all important data.
If you want to, you can mount local directories into your docker containers, so that you can use your existing backup solution.

I'll add this to the wiki soon.

[tiberios1]

Is there any update to this? I haven't been able to find any documentation on the docker-mailserver wiki about mounting local directories into the containers.

[jeboehm]

https://github.com/jeboehm/docker-mailserver/wiki/Howto:-Backup-Docker-volumes