Wrong sending IP on outgoing email

What type of hardware are you using: Virtual machine
What YunoHost version are you running: 12.1.39
How are you able to access your server: The webadmin
SSH

Describe your issue

I have two network interfaces on my container, one to the local network and one with a public IP.

When sending emails postfix uses the local IP as sender IP and thus get blocked.

How can i specify the sending IP in Yunohost/Postfix?

Strangely I’m quite sure this worked previously. I have however since tried to change the default domain if that might affect this.

Share relevant logs or error messages

Headers in bounced email:

Received: from “mydomain_com” (“hostname” [192.168.1.157])

Which result in the bounce:

said: 554 5.7.1
Spam message rejected (in reply to end of DATA command)

Ok, it could be the reverse lookup that pointed wrong since i changed the default domain. Seems to work now :confused: