If you prefer not to use a third-party checker tool, you can implement these native workflows to ensure valid payments:
What is your ? (e.g., automated affiliate payouts, fraud screening at signup, clean up a subscriber list) paypal valid email checker
Many affiliate programs pay commissions via PayPal. Affiliates often check whether their registered payout email is correct and active. Network managers may also verify hundreds of affiliate emails at once. If you prefer not to use a third-party
Require users to type their payment email twice, reducing manual input typos by up to 90%. Network managers may also verify hundreds of affiliate
Unlike standard email verifiers—which only check if an email domain exists or can receive messages—a PayPal checker looks specifically for financial registration. It acts as a bridge between your user database and the payment processor's network to confirm user legitimacy before a transaction occurs. Why Online Businesses Need a PayPal Verification Tool
If you use an automated checker that pings PayPal’s servers hundreds of times, PayPal may detect unusual activity and permanently limit your account.
If you'd like to find a specific tool to help you with this, I can look for: (based on user reviews and pricing)