Okay, so the Proton mail did clear itself up. The DNS finally propagated. Fucking DNS.

I'm going to, however, move that domain away from Proton and just use Zoho. Several people have recommended it and after setting it up, it seems awesome. (It also didn't take more than 20 min for the DNS to propagate, so there's that win). 

I'll test proton with the provided email address and use it for sensitive stuff. 

 @74178bce Glad it worked out. I’ve used Proton for a couple of years. I did want to move my domain but not familiar with the entire process. Guess I need to read more one day. 

 @74178bce If there's one thing I've learned from @ed044e85 it's that it's always DNS. 
I burned some food on the stove today and I'm sure somehow DNS was involved.