Question and AnswerCategory: Web analyticsWhat's the difference between single opt-in and double opt-in?

What’s the difference between single opt-in and double opt-in?

1 Answers

“Single opt-in” refers to email addresses you have collected on your list from people who asked to be added, but for who you have not electronically confirmed their email address. “Double opt-in” (sometimes called “confirmed opt-in”) is a process that sends a confirmation email to each new address added to your list asking the recipient to click a link in the email to confirm that they requested information from you.