Hello @Redbom,
Welcome to the PayPal Community!
I'm sorry to hear you received an email from PayPal through Square. I can confirm that the email you received is not legitimate because PayPal and Square are separate companies. PayPal emails would only be sent from PayPal, and the same for Square. I recommend visiting our Help Center to learn more about phishing emails and how to spot common scams by clicking either of these links.
I hope this information helps you stay safe!
- Meghan
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