This addon allows you to specify a MailPoet newsletter list ID in the addon settings. When affiliates join your site, they get signed up to the specified MailPoet list automatically.
The WP Affiliate Platform is a WordPress plugin that allows you to create a complete affiliate system within your WordPress website (without requiring any third party services).
If you are using MailPoet plugin and you want to integrate it with the
WP Affiliate plugin then use this addon plugin.
You can find detailed usage instructions for this addon
here