Using automated tools to query PayPal’s systems violates their Terms of Service regarding automated access. If an individual uses a checker to scrape data or test account validity without permission, they risk having their IP address banned.
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— As payment fraud continues to rise, regulators may push payment platforms to offer better recipient verification tools to legitimate businesses. Using automated tools to query PayPal’s systems violates
Using this method repeatedly or on emails you do not own could violate PayPal’s Terms of Service (Section 7: "You will not probe, scan, or test the vulnerability of any system or network"). It can also get your IP flagged. If you delete a link, you'll still have
If you use an automated checker that pings PayPal’s servers hundreds of times, PayPal may detect unusual activity and permanently limit your account.
At its core, the question is straightforward: given an email address, can you determine whether it is linked to an active, verified PayPal account?