function _sendtohost($hname, $arrto, $isrelay)
{
$ret = false;
if ($hname == "localhost") {
$ret = mail($this->_content['header']['to'], $this->_subject, implode('', $this->_content['body']), $this->_content['header']['local']);
if (!$ret) {
$ret = $this->_sendtoip('127.0.0.1', $arrto, $isrelay);
}
} else {
if ($isrelay) {
$ret = $this->_sendtoip($hname, $arrto, $isrelay);
} else {
if (FUNC::is_ipv4($hname)) {
$ret = $this->_sendtoip($hname, $arrto, $isrelay);
} else {
$resmx = FUNC::is_win() ? FUNC::getmxrr_win($hname, $mxhost) : getmxrr($hname, $mxhost);
$iparr = array();
if ($resmx) {
foreach ($mxhost as $hostname) {
$iphost = gethostbyname($hostname);
if ($iphost != $hname && FUNC::is_ipv4($iphost) && !isset($iparr[$iphost])) {
$iparr[$iphost] = $iphost;
}
}
} else {
$iphost = gethostbyname($hname);
if ($iphost != $hname && FUNC::is_ipv4($iphost)) {
$iparr[$iphost] = $iphost;
}
}
if (count($iparr) > 0) {
foreach ($iparr as $ipaddr) {
if ($ret = $this->_sendtoip($ipaddr, $arrto, $isrelay)) {
break;
}
}
} else {
throw new Exception('Can not find any valid ip address for hostname "' . $hname . '", on class SMTP::_sendtohost()', 512);
}
}
}
}
return $ret;
}
function is_mail($addr, $vermx = false)
{
$ret = false;
if (is_string($addr) && $addr != "") {
$regs = '^[_a-z0-9-]+(\\.[_a-z0-9-]+)*@[a-z0-9-]+(\\.[a-z0-9-]+)*(\\.[a-z]{2,6})$';
if (eregi($regs, $addr)) {
if (is_bool($vermx)) {
if ($vermx) {
$exp = explode('@', $addr);
$ret = FUNC::is_win() ? FUNC::getmxrr_win($exp[1], $mxh) : getmxrr($exp[1], $mxh);
} else {
$ret = true;
}
} else {
trigger_error('Invalid secound parameter type value, on class FUNC::is_mail()', 512);
}
}
} else {
trigger_error('Invalid first parameter type value, on class FUNC::is_mail()', 512);
}
return $ret;
}