PHP PHP Email Validator - 电子邮件MX DNS记录检查

Posted 2021-05-15

<?php
function domain_exists($email, $record = 'MX'){
   list($user, $domain) = explode('@', $email);
   return checkdnsrr($domain, $record);
}
if(domain_exists('[e-mail]')) {
   echo('This MX records exists; I will accept this email as valid.');
}
else {
   echo('No MX record exists;  Invalid email.');
}