Correct answer: An email address that is not used by a real person, and is instead used by inbox providers to identify malicious senders..
Why this is the answer
A spam trap is essentially a "honeypot" for email marketers. It is a real, functioning email address, but it belongs to a machine or a security organization rather than a human being. Because no human owns the address, it can never "opt-in" to a newsletter or make a purchase.