Send Magic Link 500 - Ghost Mail Error - Ghost unable to send emails

So after updating to the 5.10 version of ghost to get some native comment functionality, my email sending capacity broke down.

I started getting 500 from the /send-magic-link HTTPS call.

But thanks to this thread I managed to sort it out again.

Here's the latest config.production.json that worked for me.

Thanks to this dude here for the solution: https://forum.ghost.org/t/ghost-unable-to-send-emails/9934/33