[isxek]

> I use Thunderbird - The only desktop client which has both Windows/Linux versions (with identical UIs)

There's also Sylpheed (https://sylpheed.sraoss.jp/en/) and Claws Mail (https://www.claws-mail.org/).

[lasagnaphil]

Thanks, I've also noticed the two programs, but poor HTML support for both of those is kind of a bummer...

If I were just using email with developers I would not care about sending/receiving only text emails, but unfortunately the real world is a bit more complicated than that...