Thanks @pfaffman
Me looking at that thread: 
I think the gist of it is to add those two entries under the environmental variables. I will give that a shot. I already have domain forwarding going on so that people that go to “g2ic.com” already get forwarded to “forum.g2ic.com” so I’m wondering if there’s going to be conflicts.
((Back when I ran this site in the 90s, it seemed SO MUCH EASIER 
))
Can anyone tell me though WHY on earth this happened by just changing the SMTP values??