MailPoet

With WP Client Reports Pro, you can add a new section to the report that displays information about the audience that your client is working to build. Websites often feature mailing list sign up forms, and clients often like to know how effective those are with this helpful integration.

MailPoet is a WordPress plugin that allows you to collect and organize email lists right inside of your WordPress website and design and send emails from the WordPress admin as well. It has become a popular alternative to larger email providers that come with a hefty fee.

WP Client Reports Pro reports your current mailing list size as well as new subscribers and recent unsubscribes.