In email marketing, an opt-out means unticking a pre-ticked box that says “I would like to receive this email” or having to tick a box that says “I would not like to receive this email”, as opposed to ticking a box that says “I would like to receive this email”.
Due to GDPR, opt-outs are not a legal way to collect email addresses of any European citizen in order to build an email them.
Glossary Index