A reader received a suspicious email claiming to come from Facebook. The email claims to be a warning that someone using an iPhone 11 Pro had tried to log into the account. However, neither option is actually a traditional web link. Instead, if you were to click on the links (which use the mailto: URI scheme) your email client opens and you will find that you are sending an email to 39 different email addresses. The best defence is to know that any emails from Facebook *must* be bogus because you simply dont have a Facebook account.”]
Source: https://grahamcluley.com/fake-facebook-email-39-strangers/