Mailbox

<svg width="1em" height="1em" viewBox="0 0 16 16" class="bi bi-mailbox" fill="currentColor" xmlns="http://www.w3.org/2000/svg">
  <path fill-rule="evenodd" d="M4 4a3 3 0 0 0-3 3v6h6V7a3 3 0 0 0-3-3zm0-1h8a4 4 0 0 1 4 4v6a1 1 0 0 1-1 1H1a1 1 0 0 1-1-1V7a4 4 0 0 1 4-4zm2.646 1A3.99 3.99 0 0 1 8 7v6h7V7a3 3 0 0 0-3-3H6.646z"/>
  <path fill-rule="evenodd" d="M11.793 8.5H9v-1h5a.5.5 0 0 1 .5.5v1a.5.5 0 0 1-.5.5h-1a.5.5 0 0 1-.354-.146l-.853-.854z"/>
  <path d="M5 7c0 .552-.448 0-1 0s-1 .552-1 0a1 1 0 0 1 2 0z"/>
</svg>