I've received a phishing email from an @paypal.com email address. (The From: header showed an @paypal.com email address.) Fortunately, the text of the email itself was fishy enough to make me realise it wasn't legitimate. I have no idea how it passed spam filters. I reported the email to both PayPal and my email provider, and I never heard back.

Can you download the email as EML and paste the content here?