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<?php
declare(strict_types = 1);
namespace AmmitPhp\Ammit\Domain;
class MailMxValidation
{
public function isEmailHostValid(string $emailAddress): bool
$host = substr($emailAddress, strrpos($emailAddress, '@') + 1);
return $this->isHostValid($host);
}
public function isEmailFormatValid(string $emailAddress): bool
if (! filter_var($emailAddress, FILTER_VALIDATE_EMAIL)) {
if
return
return (bool) filter_var...FILTER_VALIDATE_EMAIL);
return false;
return true;
/**
* Check DNS Records for MX type.
*/
private static function isMxValid(string $host): bool
return checkdnsrr($host, 'MX');
* Check if one of MX, A or AAAA DNS RR exists.
private function isHostValid(string $host): bool
return $this->isMxValid($host) || (checkdnsrr($host, 'A') || checkdnsrr($host, 'AAAA'));
ammit-php /
ammit
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