Is it possible to restore/upgrade just the configuration?
I had a major bump will migrating from 0.30 and now I’m restoring user-data from my tarsnap repository. Unfortunately the restore process is very slow and will take 4 days for the complete download.
Is there a way to do a partial restore? Just the config? Users, etc.
I can then migrate the files, emails into the folders when they have downloaded?
You have spun up a completely new install of MiaB, correct?
I think that I misread your OP, I was thininking that you just needed user accounts … if you have only one domain and have already configured the domain, that should be all you need …
I am curious, how large is your backup?
But you are going to have other issues … if you start using the mailboxes before restoring the backup, then restoring the backup will overwrite your new mail. You may need to create a second MiaB and restore the backup to it then use rsync or imapsync to restore the old mail. … and find a backup method that does not take 4 days to restore!
Then simply create a email user for each domain. One that you do not use in actuality. That will set up all the other settings.
I assume that you are using a different hostname and IP, so that info will need to be changed at the domain registrar level for each domain. You’ll need to adjust DNS as well if you are using external DNS. Oh, and if you are using MiaB for DNS be sure that you have disabled DNSSEC if it is enabled.