RemixIconEx.Business.mail_volume

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

mail_volume(icon_css_class \\ "icon")

iex> Elixir.RemixIconEx.Business.mail_volume()
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" class="icon">
  <path d="M20 14.5v9L16.667 21H14v-4h2.667L20 14.5zM21 3a1 1 0 0 1 1 1v9h-2V7.237l-7.928 7.101L4 7.215V19h8v2H3a1 1 0 0 1-1-1V4a1 1 0 0 1 1-1h18zm0 14a2 2 0 0 1 .15 3.995L21 21v-4zM19.5 5H4.511l7.55 6.662L19.5 5z" />
</svg>

example usage

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