mail-sandbox but postfix only starts on localhost

[belerovon]

Hi all

I wanna use the mail-sandbox in my docker-compose and configured it like:
mail-sandbox:
container_name: "dmarc_mail-sandbox"
image: "webdevops/mail-sandbox:latest"
restart: "unless-stopped"
ports:
- "0.0.0.0:1125:25"
environment:
MAILBOX_USERNAME: dmarc
MAILBOX_PASSWORD: dmarc
POSTFIX_MYNETWORKS: 192.168.0.0/16

When I start the container I got a connection refused when do an telnet on :1125

On container I can see:
netstat -tulpn
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN -

In main.cf:
inet_interfaces = 127.0.0.1

All the time when I try to set inet_interfaces = all and restart the postifix service, the interface will be set back to 127.0.0.1.

Any idea?