markush It did cross my mind that you might be better off rebuilding with the correct domain names/ hostnames. This is usually not that big a problem if, you are using the appliance, virtualisation and you do not have too many mailboxes or too much email etc to migrate back in.
As an example, I built 3 test VM's this afternoon to investigate the Archive option. Using Proxmox (or other Hypervisor) you can do a basic build and snapshot it before you put any data on it, then play until you get the config how you want it, reverting to your snapshot when things are quite right, then trying again. I have published elsewhere on this forum a relatively simple process (thanks to the various forum members who helped put this together) for migrating the data (inclusive of Org, Domain and Users) from one Grommunio instance to another. On my relatively modest Proxmox Cluster, using a 3 node hyperconverged Ceph cluster using USB SSD's, I can migrate a couple of mailboxes with around 20,000 items in less than 5 mins.
As far as the Archive option is concerned, I eventually decided it doesn't really provide what I was expecting, so have dumped the project.
So my next project to test will be moving my email data to a new NAS (using 10GB networking), and symlinking - or similar - the /var/lib/gromox data directory to the data on the NAS so data migrations should just be a case of moving the sql databases from one Grommunio server to its replacement, this should make swapping between servers (building a new server from a new release of the appliance ISO for example) take just a few minutes with good detailed documentation. I have already achieved this process with the Grommunio Files option and it has already saves a great amount of time when building up a new server (from the 11/23 build with the several appliance ISO that where released at the end of last year.
