supervisor run program with localhost instead IP

[FlorentinCONGO]

Hello everyone. I'm asking for your help.
I have an application called mailroom. to launch it I have to type "./mailroom". I wanted to automate its startup so I used supervisord. The problem is that when I type "./mailroom" in the command line it opens on its port (8090) but authorizing the IP address of the machine. But if I use supervisor to launch it, it launches by opening its port but only authorizing localhost.
How do I get supervisor to start it on the port but allow its IP address?

Thanks in advance.