Success. Today's mission was to get outbound emails working to mask my IP and have a good sending reputation. I've had a resend.com account for a while and now they support smtp relay service. While I try to self host a much as I can, masking IPs requires some cloud service and my VPS provider has a terrible IP reputation so here we are.

Anyway git patch submissions via email should be easier to handle and automate when the time comes.