php验证邮件登陆 smtp

/**

* 通过邮件 验证登陆

* 这里注意用户名是这样的 aaa@163.com

*/

function valideEmailLogin($user, $pass, $smtp_server= 'smtp.163.com', $port=25)

{

$handle = fsockopen($smtp_server, $port);

if(!$handle)

return false;

$mes = fgets($handle);

//echo $mes;

if(!$mes){

fclose($handle);

return false;

}

$status = explode(" ",$mes);

if($status[0] != 220) { //链接服务器失败

fclose($handle);

return false;

}

fwrite($handle, 'HELO ddddd'."\r\n"); //表明身份,这里的mystore是随便写的

$mes = fgets($handle);

//echo $mes;

if(!$mes){

fclose($handle);

return false;

}

$status = explode(" ",$mes);

if($status[0] != 250) { //服务器HELO失败

fclose($handle);

return false;

}

fwrite($handle, 'AUTH LOGIN'."\r\n");

$mes = fgets($handle);

//echo $mes;

if(!$mes){

fclose($handle);

return false;

}

$status = explode(" ",$mes);

if($status[0] != 334) { //请求验证登陆失败

fclose($handle);

return false;

}

fwrite($handle,base64_encode($user)."\r\n");

$mes = fgets($handle);

//echo $mes;

if(!$mes){

fclose($handle);

return false;

}

$status = explode(" ",$mes);

if($status[0] != 334) { //验证用户名失败

fclose($handle);

return false;

}

fputs($handle,base64_encode($pass)."\r\n");

$mes = fgets($handle);

//echo $mes;

if(!$mes){

fclose($handle);

return false;

}

$status = explode(" ",$mes);

fclose($handle);

if($status[0] != 235) { //验证密码失败

return false;

}else{

return true;

}

}