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<?php $domain = 'non-existant-domain-name.com'; if (gethostbyname($domain) == $domain) { var_dump(checkdnsrr($domain)); var_dump(getmxrr($domain, $mxhosts)); var_dump($mxhosts); } else { echo 'Domain exists'; }

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54.68 ms | 402 KiB | 5 Q