==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release): 0.9.9
- Deployed with iRedMail Easy or the downloadable installer? Downloadable Installer
- Linux/BSD distribution name and version: Ubuntu 18.04 to 24.04
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Web server (Apache or Nginx): Nginx
- Manage mail accounts with iRedAdmin-Pro? NO
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====

hello how i cant migrate from my iRedMail 0.9.9 on my Ubuntu 18.04 LTS physical machine to a new physical machine with Ubuntu 24.04 LTS?

i copy all the info on /var/vmail/ to my new machine and i do the backup of the DB on MySQL to MariaDB; and i create the correct permision with

This directory must be owned by vmail:vmail with permission 0700.
chown -R vmail:vmail /var/vmail/vmail1/
chmod -R 0700 /var/vmail/vmail1/

but always i found a blank list of emails in every mail account ??

can someone give me help with this?