==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release): 1.6.3 MARIADB edition
- Deployed with iRedMail Easy or the downloadable installer? downloadable installer
- Linux/BSD distribution name and version: AlmaLinux release 9.2 (RHEL9 clone)
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL (MariaDB)
- Web server (Apache or Nginx): not sure if asked during istallation; apparently nginx from the content of iRedMail.tips
- Manage mail accounts with iRedAdmin-Pro? no
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====

Having seen that RHEL 9.x was supported, I did the installation on a fresh AlmaLinux 9.2 server.
The installation finished with no errors, but after restart no service is running, and none of the "obvious" ones (like postfix and dovecot) are enabled in systemctl.

Please tell me if this Linux version is not completely supported, and I should revert to a RHEL8 compatible version, or if there is a way to fix this installation. Looking at the content of iRedMail.tips it seems that there was no error.

Thanks for your support.