Confirmation Email Definition An automated email sent to a lead after they subscribe to your list. Also known as a “double opt-in,” this may reduce your list size but it will improve its quality, which will likely increase your open and click-through rates. A confirmation email is a great opportunity to drive the subscriber further down the marketing funnel by sharing additional content or offers. “Sending a confirmation #email may reduce your list size but it will improve its quality.” Tweet This Resources How to Get More Email and Newsletter Signups With Your Landing Page A Confirmation E-mail Is a Terrible Thing to Waste How to Build an Email List from Scratch (A Step-By-Step Guide) The Complete Guide to Transactional Email