Is this an unverified email?
Not to be flippant but it depends on your definition. As I said the source is credible (that is, the source who forwarded it to me). I don’t personally know the originator of the email but it is part of a discussion between Ranger school graduates. I didn’t include the whole email, only about half. Judge for yourself if it seems credible. I think it is. The facts match what we know and the slang and other specifics suggest credibility.