Learning Center » Ask Leo! » What do terms like "opt-in", "opt-out" and "double opt-in" What do terms like "opt-in", "opt-out" and "double opt-in" I keep hearing terms like "opt-in", "opt-out" and "double opt-in" but I don't get what they mean. What do they mean? In short they indicate whether or not you were given a choice, and in the case of "double opt-in", whether or not it was really you that accepted that choice. The terms are actually fairly generic, but we'll look at it from the perspective of email, and spam. Continue reading What do terms like "opt-in", "opt-out" and "double opt-in" mean? Tech Questions? Get Answers! - Ask Leo! ... by Leo Notenboom Leo's Answers Newsletter - Ask Leo! in your inbox every week. Source: What do terms like "opt-in", "opt-out" and "double opt-in" mean? Please Note: The above article was not written by staff of Connor's Web Guide and thus we can guarantee the content or stability of its external link. Peer Rating System: Would you recommend this article? 1 2 3 4 5 0.00 out of 5, With 0 Votes