If he does nt have a firewall and his server is able to connect on port 465...We dont you use a real e-mail?
<?php $fp = @fsockopen("smtp.gmail.com", 465, $errno, $errstr, 30);if (!$fp) { echo "Could not connect to GMAIL!<br />\n"; echo "$errstr ($errno)<br />\n";} else { echo "Connected successfully on gmail!"; fclose($fp);}?>