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@ 2015-05-04T15:42:39Z

<?php
   $email = "ceo@example.com";
   $domain = explode("@",$email);
   
   $valid = checkdnsrr($domain[1], "ANY");

   if($valid) echo "The domain has an MX record!";
   else echo "Cannot locate MX record for $domain[1]!";
?>

Output
Performance
VLD
References
Branches

explode: documentation ( source)
checkdnsrr: documentation ( source)

preferences:dark modelive preview

66.24 ms | 402 KiB | 5 Q