RemixIconEx.Business.mail

You're seeing just the function mail, go back to RemixIconEx.Business module for more information.
Link to this function

mail(icon_css_class \\ "icon")

iex> Elixir.RemixIconEx.Business.mail()
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" class="icon">
  <path d="M3 3h18a1 1 0 0 1 1 1v16a1 1 0 0 1-1 1H3a1 1 0 0 1-1-1V4a1 1 0 0 1 1-1zm17 4.238l-7.928 7.1L4 7.216V19h16V7.238zM4.511 5l7.55 6.662L19.502 5H4.511z" />
</svg>

example usage

svg.icon {
  width: 96;
  height: 96;
}