ENDIAN Firewall - SMTP Proxy configured, but mail status says SMTP proxy disabled.....

Hi.

I have enabled SMTP proxy. But when I look at the mail queue in status section it says "The SMTP proxy is currently disabled. Therefore no information is available."

Any help is very much appreciated.

Also, do I need to specify all my mailservers' IPs? Or all domains hosted with us? That is going to be a long list. Can SMTP proxy just filter all that comes through the ports (25, 587, 993, 143, etc)? Or do I have to explicitly specify the IPs and domains and mailservers?

Any more detailed documentation in regards to the smtp/mail proxy settings? I believe I have configured it already but wana be sure I did it right, as I'm not seeing it as active in the status section.

Also, one more thing. In SMTP Proxy -> Incoming domain, can I leave that empty so it will flag all mail passing through the firewall??

My servers are in DMZ with their own public IPs and I'm using Incoming Routed Traffic (No DNAT).