html emails is a very fine art (you need to support 90+ clients and inline styles etc etc)..

I suggest using mjml https://mjml.io - elixir library: GitHub - adoptoposs/mjml_nif: Elixir NIF bindings for the MJML Rust implementation (mrml) · GitHub

edit: there seems to be https://maizzle.com for tailwind emails - mjml is certainly the tested and trusted way - no idea if maizzle works..

Maizzle doesn’t include markup abstractions that expand to table-based structures, such as <row> or <column> in other frameworks.

You code your emails the way you want to with HTML you already know, there’s no need to learn new tags or attributes.

Knowing that some email clients still need layouts coded with tables in order to ensure proper rendering, this might sound terrifying to some. However, depending on your audience, nowadays you can actually use modern HTML and CSS and have your layout look great in the majority of email clients.
What is Maizzle? - Getting Started / Maizzle

majority of email clients - so maizzle is not useable if you want html emails that “just work”.. so I would recommend going with mjml: Crafting Beautiful Emails in Elixir Using MJML-Alex Koutmos | Engineering Blog

Unfortunately, email clients haven’t caught up with web standards.

Instead of building the emails manually, you can also build a template with a visual tool (most of them are built on top of mjml) and then put placeholders in the generated HTML:

• Topol,
• BEE

and probably more.