All you need to do is make up and share a unique mask that uses your custom subdomain — the mask will be generated automatically. Try “shop@customsubdomain.mozmail.com” next time you shop online, for example.
Toto lo que tu debe facer es crear e compartir un unic masca que usa tu subdominio personal, le masca sera generate automaticamente. Per exemplo proba “shop@customsubdomain.mozmail.com” le proxime vice que tu compra online.