[gempir]

Funny a few years ago I built exactly this for our company mailings. We checked out several frameworks and those are great if you only need an Email to look somewhat good and not have too specific of requirements.

But our Emails had to replicate other teams designs 1:1 pixel perfect. So we mostly used the same code blocks.

I needed some sort of framework that would organize those code blocks and jsx was perfect. I generated twig templates out of the JSX and used php to send the emails.