Soooo, let's just send a validation email and if they confirm the code, then it's a valid email?
Functionally there's no false positives or false negatives
There's a lot of false negatives because emails get stuck for hours, get blocked by the spam filter or fail to be delivered for whatever reasons.
There's a lot of false negatives because emails get stuck for hours, get blocked by the spam filter or fail to be delivered for whatever reasons.