Bit of a challenge here.
It appears that NodeRed is resolving my server address to the Public IP. However, I am trying to reach the internally hosted mail server. It is on the same network as my node-red. But, for some reason, it keeps trying to reach the public IP (my public MX record) rather then my internal.
Is there a way to tell Nodered to resolve DNS to the local machine rather then having it reach out to the public?