==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release): 0.6.1
- Deployed with iRedMail Easy
- Linux/BSD distribution name and version: Centos 5
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):  LDAP(Not Sure)
- Web server (Apache or Nginx): Apache
- Manage mail accounts with iRedAdmin-Pro? No
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====

Hi Team,

I am new to iRedmail. In my work place we have iredmail environment for LDAP (Only for LDAP ) which is old version of OS(Centos 5) and iredmail-0.6.1 which was deployed a decade ago(My guess). I have joined 2 months before and assigned task to upgrade this environment to latest.

Option 1 : New server with Centos 9 with latest iredmail
Option 2 : New Openldap environment and migrate existing ldap user account to this.

Kindly suggest me which I can opt and guide me the method to complete this task.

We are creating user through Server CLI by running script(create_mail_user_OpenLDAP.sh) and delete users through PHPldapadmin webmin. We DON'T use mail server in this. setup is only for pure LDAP function.

Kindly let me know if need any more details.

Thanks,
PR