Hello @helenhere,
Welcome to our community forum and thanks for posting here!
I understand your concern about the unknown email address in your PayPal account. Please remove the unknown email address in your PayPal account and make sure to update your password & security questions and report any unauthorized activity to us.
If you have received any unknown email notification about PayPal activity, please report it to us.
I hope this information helps!
Bindu
If you feel this or any other post helpful, please enrich the community by giving kudos or accepting it as a solution.
