It's not really good etiquette that way. The origi

It's not really good etiquette that way. The original corresponder has the right and propriety to fire back a question about a reply he, specifically, received from someone. Let's say you wrote a letter to a company. The company president personally replied to you. Then some total stranger writes to that company president and says, "What the heck did you mean by this letter, containing this phraseology, which you sent to that doctor?" If I were the company president, I'd never answer it.