==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release):
- Deployed with iRedMail Easy or the downloadable installer?
- Linux/BSD distribution name and version:
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):
- Web server (Apache or Nginx):
- Manage mail accounts with iRedAdmin-Pro?
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====

Debian 13 is marked as supported in the github version but I have an error when installing on a fresh debian 13 vm/ct.

    elif [ X"${DISTRO}" == X'DEBIAN' -o X"${DISTRO}" == X'UBUNTU' ]; then
        ALL_PKGS="${ALL_PKGS} bzip2 acl patch cron tofrodos logwatch unzip bsdutils liblz4-tool rsyslog"

liblz4-tool is a transitional package and it isn`t available on debian 13, only on 12. functions/packages.sh should require lz4 and not liblz4-tool for debian 13.

Debian 12:

root@mail:~/iredmail/iRedMail-1.7.4/functions# apt-cache search liblz4-tool
liblz4-tool - Fast LZ compression algorithm library - transitional package
lz4 - Fast LZ compression algorithm library - tool

Debian 13:

root@zen:~# apt-cache search liblz4-tool
root@zen:~#