Opt-in marketing is sending email marketing messages only to subscribers who explicitly request them. If subscribers ask for a specific piece of information, you have their permission to send that information. To continue sending marketing emails, you need explicit permission to do so.
Subscribers opt in for your email by providing their information through a variety of opt-in forms. Popular opt-in forms include:
- Landing page header
- Landing page pop-up
- An option before and after a transaction, either online or at the point-of-purchase