Could you tell me the mail client that can impose the made-up subject of the letter, huh?

Question

Email

I would like all employees to set up a corporate letter template, but we cannot find a mail program that would support custom html templates.

Answer 1

The Bat!, for example

I'm not really sure that you can load HTML from outside, but try it.

Answer 2

so what's wrong with outlook? there are templates there.