Someone could go just a little bit further and build an app that generates a random, but short and easy-to-say email address on demand from your domain and link

Someone could go just a little bit further and build an app that generates a random, but short and easy-to-say email address on demand from your domain and links it in a database to the company you want, when you created it, etc. Instead of jcrew@yourdomain.com it would be ec5@yourdomain.com or mz2@yourdomain.com and an email client could replace the "to address" in your inbox with some description field linked to that email like "jcrew"