Validate email with TLD domain required

By default, the email validation rule will accept an email without tld domain (ie: taylor@laravel, povilas@ldaily)

But if you want to make sure the email must have a tld domain (ie: taylor@laravel.com, povilas@ldaily.com), use email:filter rule.

[
    'email' => 'required|email', // before
    'email' => 'required|email:filter', // after
],

Tip given by @Chris1904