Hi Brad,
If you want to avoid NS7 reinstall + NS8 migration, you’ve to explore a new path!
To import existing mails I can just give you some commands, but finding the missing pieces is up to you.
I assume the Mail module is new, already configured, but no message received yet.
Get the absolute volume path with this command.
VMAIL_PATH=$(runagent -m mail1 podman volume inspect dovecot-data --format '{{.Mountpoint}}')
echo $VMAIL_PATH
Copy/Move /var/lib/nethserver/vmail contents of NS7 to that path.
As said many times, fixing the ownership to the correct value is a real challenge in the containers world and for this reason absolute path operations must be avoided.
The VMAIL_PATH directory ownership should be already correct (if you didn’t overwrite it in the copy/move step). Let’s use it as reference to fix the ownership of that dir contents (in this case they are homogeneous and the trick works):
chown -R --reference "${VMAIL_PATH}" "${VMAIL_PATH}"/*
Now you have imported the Maildirs, but some format conversion are needed by NS8.
Get a shell of mail1:
runagent -m mail1
Stop Dovecot
systemctl --user stop dovecot
Run the Maildir conversion
../actions/import-module/35migrate_maildirs
Start Dovecot
systemctl --user start dovecot
Start quota recalculation
../actions/import-module/60quota_recalc
Good luck!