还有，我自己写的发邮件方式也是报这个错，用的163发，在我本机可以发，但是上服务器就会报这个标题一样的错，感觉应该是某个配置有问题，附上自定义代码：
<?php
class Mailer
{
private $host;
private $port = 25;
private $user;
private $pass;
private $debug = false;
private $sock;
public function __construct($host,$port,$user,$pass,$debug = false)
{
$this->host = $host;
$this->port = $port;
$this->user = base64_encode($user); //用户名密码一定要使用base64编码才行
$this->pass = base64_encode($pass);
$this->debug = $debug;
//socket连接
$this->sock = fsockopen($this->host,$this->port);
if(!$this->sock){
exit('出错啦');
}
//读取smtp服务返回给我们的数据
$response = fgets($this->sock);
$this->debug($response);
//如果响应中有220返回码，说明我们连接成功了
if(strstr($response,'220') === false){
exit('出错啦');
}
}
//发送SMTP指令，不同指令的返回码可能不同
public function execCommand($cmd,$return_code){
fwrite($this->sock,$cmd);
$response = fgets($this->sock);
//输出调试信息
$this->debug('cmd:'.$cmd .';response:'.$response);
if(strstr($response,$return_code) === false){
return false;
}
return true;
}
public function sendMail($from,$to,$subject,$body){
//detail是邮件的内容，一定要严格按照下面的格式，这是协议规定的
$detail = 'From:'.$from."\r\n";
$detail .= 'To:'.$to."\r\n";
$detail .= 'Subject:'.$subject."\r\n";
$detail .= 'Content-Type: Text/html;'."\r\n";
$detail .= 'charset=gb2312'."\r\n\r\n";
$detail .= $body;
$this->execCommand("HELO ".$this->host."\r\n",250);
$this->execCommand("AUTH LOGIN\r\n",334);
$this->execCommand($this->user."\r\n",334);
$this->execCommand($this->pass."\r\n",235);
$this->execCommand("MAIL FROM:<".$from.">\r\n",250);
$this->execCommand("RCPT TO:<".$to.">\r\n",250);
$this->execCommand("DATA\r\n",354);
$this->execCommand($detail."\r\n.\r\n",250);
$this->execCommand("QUIT\r\n",221);
}
public function debug($message){
if($this->debug){
echo '<p>Debug:'.$message . PHP_EOL .'</p>';
}
}
public function __destruct()
{
fclose($this->sock);
}
}
$port = 25;
$user = ''; //请替换成你自己的smtp用户名
$pass = ''; //请替换成你自己的smtp密码
$host = 'smtp.163.com';
$from = 'an94er@163.com';
$to = 'an94er@live.com';
$body = $_GET["body"];;
$subjet = '购买下单';
$mailer = new Mailer($host,$port,$user,$pass,true);
$mailer->sendMail($from,$to,$subjet,$body);
?>
只需要改下
$user = ''; //请替换成你自己的smtp用户名
$pass = ''; //请替换成你自己的smtp密码
就可以直接用了的，本机可以，服务器不行