ghost/admin/public/assets/icons/email-header.svg
<svg width="16" height="16" fill="none" xmlns="http://www.w3.org/2000/svg">
<title>email-header</title>
<path d="M14 .998H2a1 1 0 0 0-1 1v12a1 1 0 0 0 1 1h12a1 1 0 0 0 1-1v-12a1 1 0 0 0-1-1Zm-13 4h14" stroke="currentColor" stroke-width="1.2" stroke-linecap="round" stroke-linejoin="round"/>
</svg>