AffiliateWP ConvertKit allows you to add affiliates to your ConvertKit email marketing list upon their registration. A variety of settings gives you even more options to customize the subscription behaviour.
This plugin extends Easy Digital Downloads by allowing to send custom purchase receipts for license renewals and license upgrades. You no longer have to use the standard purchase receipt for all purchases.
AffiliateWP Sendy allows you to add affiliates to your Sendy email marketing list upon their registration. A variety of settings gives you even more options to customize the subscription behaviour.