Here is short script you can use to make backups into Hetzner storage box using CIFS aka Windows Share.
mount.cifs //uXXXXXX.your-storagebox.de/backup /mnt/hetzner/ -o user=uXXXXXX,pass=YYYYYYYY cp -r /mnt/HD/HD_a2/backups2/hourly.0/ /mnt/hetzner/dns-320 umount /mnt/hetzner
And what I want is to backup everything what has been done by the rsnapshot, that's why I've added following to the crontab
... 30 3 * * * rsnapshot daily && /mnt/HD/HD_a2/ffp/home/root/backup-hetzner.sh ...
So right after rsnapshot finish its job backup to remote host starts.