mailbox from coolicons in Line with regular corners. post, letterbox, mail, delivery, inbox, postbox. Other styles and corners: @coolicons/<style>/<radius>/mailbox with line, duocolor, duotone, fill or bulk and sharp or round. Leave out regular, like @coolicons/fill/mailbox, and use @coolicons/mailbox for line with regular corners.
pnpm dlx shadcn@latest add "https://coolicons.cool/r/mailbox.json"