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I understand you're looking to remove the email addresses from your PayPal account. You can find the steps on how to add/remove the email address in your PayPal account here : How do I add, remove or update an email address on my PayPal account
Since you're concerned about the email addresses associated with the subscription payments, you can update the settings of your automatic payments/subscriptions by following the steps listed here : how to update automatic payments
I hope this information helps!