This scammer wants you to believe you’ve paid an invoice for a year’s protection from McAfee. The goal is to get you to call them or email them when you see you’ve either paid a second time or paid for a service you didn’t allow. You probably didn’t pay for this service. Emails that start with Sir/Madam(Mam) are almost always scams. Be wary of emails that try to invoke fear or urgency. NEVER click on links from emails, even if they come from a business or person you know and trust. Scammers are getting much better at mimicking real businesses. Instead, look-up the company online and log-in to check your account.
