PHP/DNS/dns get mx

Using the dns_get_mx() Function

 
<?php
    $hostname = "google.ru";
    if(dns_get_mx($hostname, $mxhosts, $weights)) {
        foreach($mxhosts as $key => $host) {
            echo "Hostname: $host (Weight: {$weights[$key]}<BR/>\n";
        }
    } else {
        echo "Could not find any MX records for $hostname\n";
    }
?>