"Email address looks legit" - warning - you CANNOT use an email address to see if it's valid. Really, means nothing. It's like looking at the address written on a letter to decide if it's valid, when people could write anything. So it might be a scam, or not.
You say you checked your account. But did you follow a link in the original email at all (even maybe)? If so, be worried, because if it's a scam you could be in deep.