Investigate the safety of adding the option ```--net host``` to the podman run command

The burninbox program sends emails of problems. In order to send emails, we need to be able to use the host port 25. We can't port forward over this port as its protected, we need to connect to the email client.

I fixed this by adding --net host to the run options, but I was wondering if @leejr had opinions on this, since this seems to be a rather "unsafe" option.