It's understandable to feel skeptical about these kinds of emails. It's always important to ensure the legitimacy of the email before taking any action. Firstly, you can check the email address of the sender. As you mentioned, the email address in this case seems strange and not related to FedEx at all. It's also worth noting that professional companies generally have official email addresses and not ones that look like personal emails.
Secondly, look for any grammatical errors or odd phrasing in the message. Scammers often use poor grammar or odd phrasing, as they may not be fluent in the language that the email is written in.
Finally, never click on any links or attachments from unknown or suspicious sources. These could be phishing...