This falls into the category of the classic “Stupid shit that most programmers believe”. Fundamentally, the problem is that if you’re trying to validate an e-m

This falls into the category of the classic “Stupid shit that most programmers believe”. Fundamentally, the problem is that if you’re trying to validate an e-mail address as being correct and you’re not sending an actual e-mail message to that address, then you’re doing it wrong. We learned this lesson back in 1995, people.