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<?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 for git.master, git.master_jit, rfc.property-hooks
Cannot locate MX record for example.com!

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