Campaigner makes it easy to subscribe members of your ExpressionEngine website to one or more Campaign Monitor mailing lists.
Whatever your ExpressionEngine membership preferences, and however you've configured your Campaign Monitor mailing lists, Campaigner just works, straight out the box. And that includes full support for many third-party add-ons.
Enter your Campaign Monitor API key, configure your mailing lists, and Campaigner does the rest. You'll be up and running in minutes.