Add bypass to "Relay only if originator's domain is local"

We don't allow open relay on our server, so we activated "Relay only if originator's domain is local".

However, we have a single machine (it's actually an application server) where we host an application that should be allowed to do open relay. This is because every user on this application has its own (some times external) email address, while the application itself can only be configured to use a single smtp server.

Unfortunately we can't tell IceWarp to allow relay from this single machine only, and inserting server IP address in the trusted IPs list doesn't help.

It would be nice to have a bypass in the "Relay only if originator's domain is local" rule, where we could put our server ip address.