Dear way-too-many companies, If you’re allowed to send me an email, I’m allowed to send you an email. You just sent me an email and I have a question. Don’t make me hunt for a way to ask it. Email already has a built-in way to do that — reply. Whether it’s good news or bad news, whether you’re an established company or a startup, your customers will love you more if you let them reply to your emails.