envelope-solid

pnpm dlx shadcn@latest add https://opensourceicon.com/r/heroicons/envelope-solid.json

<svg xmlns="http://www.w3.org/2000/svg" width="96" height="96" viewBox="0 0 24 24"><g fill="currentColor"><path d="M1.5 8.67v8.58a3 3 0 0 0 3 3h15a3 3 0 0 0 3-3V8.67l-8.928 5.493a3 3 0 0 1-3.144 0z"/><path d="M22.5 6.908V6.75a3 3 0 0 0-3-3h-15a3 3 0 0 0-3 3v.158l9.714 5.978a1.5 1.5 0 0 0 1.572 0z"/></g></svg>