Accept payments through PayPal — the world’s most-recognised checkout brand, 200+ countries, 25+ currencies — directly from your Acelle Mail install. Ships as TWO payment gateways: one-off and recurring. Customers without a PayPal account can still pay with debit/credit card on the one-off flow. No webhook setup, no IPN configuration, no merchant gateway approval. Drop-in plugin for Acelle Mail. Paste Client ID + Secret, save, sell.