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

root@mail:~# iredmail -debug
Seems server doesn't have iRedMail Enterprise Edition installed, launch installer on port 8080.
HTTP Basic Authentication:
- Username: xxxxxxxxxxxxxxxxxxx
- Password: xxxxxxxxxxxxxxxxxxxx

root@mail:/opt/iredmail/conf# netstat -ano | grep 8080
tcp6       0      0 :::8080                 :::*                    LISTEN      off (0.00/0/0)

root@mail:/opt/iredmail/conf# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether 56:00:06:4b:b2:db brd ff:ff:ff:ff:ff:ff
    altname enx5600064bb2db
    inet x.x.x.x/23 brd x.x.x.x scope global dynamic noprefixroute enp1s0
       valid_lft 85611sec preferred_lft 74811sec

root@mail:/opt/iredmail/conf# cat /proc/sys/net/ipv6/conf/all/disable_ipv6
1

All the files under /opt/iredmail appear to be binaries, I can't find anything to edit to force IPv4.

Please advise.