使用 Swift 邮件程序发送邮件时出现错误 501

<?php

  require_once '../plugin/swift/lib/swift_required.php';

  // Create the Transport
  $transport = Swift_SmtpTransport::newInstance('pod51003.outlook.com',587,'tls')
    ->setUsername('[email protected] /cdn-cgi/l/email-protection')
    ->setPassword('pw')
    ;

  // Create the Mailer using your created Transport
  $mailer = Swift_Mailer::newInstance($transport);

  // Create a message
  $message = Swift_Message::newInstance('Wonderful Subject')
    ->setFrom(array('[email protected] /cdn-cgi/l/email-protection' => 'John Doe'))
    ->setTo(array('[email protected] /cdn-cgi/l/email-protection', '[email protected] /cdn-cgi/l/email-protection' => 'A name'))
    ->setBody('Here is the message itself')
    ;

  // Send the message
  $result = $mailer->send($message);

  printf("Sent %d messages\n", $result);

?>

结果是：

Fatal error: Uncaught exception 'Swift_TransportException' 
with message 'Expected response code 250 but got code "501", with message "501 5.5.4 Invalid domain name "' 
in C:\xampp\htdocs\fyp\plugin\swift\lib\classes\Swift\Transport\AbstractSmtpTransport.php:422 

Stack trace: 
#0 C:\xampp\htdocs\fyp\plugin\swift\lib\classes\Swift\Transport\AbstractSmtpTransport.php(306): Swift_Transport_AbstractSmtpTransport->_assertResponseCode('501 5.5.4 Inval...', Array) 
#1 C:\xampp\htdocs\fyp\plugin\swift\lib\classes\Swift\Transport\EsmtpTransport.php(224): Swift_Transport_AbstractSmtpTransport->executeCommand('HELO [::1]??', Array, Array) 
#2 C:\xampp\htdocs\fyp\plugin\swift\lib\classes\Swift\Transport\AbstractSmtpTransport.php(323): Swift_Transport_EsmtpTransport->executeCommand('HELO [::1]??', Array) 
#3 C:\xampp\htdocs\fyp\plugin\swift\lib\classes\Swift\Transport\EsmtpTransport.php(272): Swift_Transport_AbstractSmtpTransport->_doHeloCommand() 
#4 C:\xampp\htdocs\fyp\plugin\swift\lib\classes\Swift\Transport\AbstractSmtpTransport.php(124) in C:\xampp\htdocs\fyp\plugin\swift\lib\classes\Swift\Transport\AbstractSmtpTransport.php on line 422
  

实际上我直接按照教程进行操作，那么我的代码中是否遗漏了任何内容？ SMTP 服务器信息有效。

外部 SMTP 设置：
服务器名称：pod51003.outlook.com- 您还可以查看下面有关如何确定服务器名称的注释
港口：587
加密方式：TLS

添加行后： 还有另一个错误：

Warning: stream_socket_enable_crypto() [streams.crypto]: this stream does not support SSL/crypto in C:\xampp\htdocs\fyp\plugin\swift\lib\classes\Swift\Transport\StreamBuffer.php on line 102

Fatal error: Uncaught exception 'Swift_TransportException' 
with message 'Unable to connect with TLS encryption' 
in C:\xampp\htdocs\fyp\plugin\swift\lib\classes\Swift\Transport\EsmtpTransport.php:283 

Stack trace: 
#0 C:\xampp\htdocs\fyp\plugin\swift\lib\classes\Swift\Transport\AbstractSmtpTransport.php(124): Swift_Transport_EsmtpTransport->_doHeloCommand() 
#1 C:\xampp\htdocs\fyp\plugin\swift\lib\classes\Swift\Mailer.php(79): Swift_Transport_AbstractSmtpTransport->start() 
#2 C:\xampp\htdocs\fyp\mail\send.php(26): Swift_Mailer->send(Object(Swift_Message)) 
#3 {main} thrown in C:\xampp\htdocs\fyp\plugin\swift\lib\classes\Swift\Transport\EsmtpTransport.php on line 283
  

尝试在此处添加此行，如下所示：

// Create the Transport
$transport = Swift_SmtpTransport::newInstance('pod51003.outlook.com',587,'tls')
->setUsername('[email protected] /cdn-cgi/l/email-protection')
->setPassword('pw')
;

// ADD THIS LINE
$transport->setLocalDomain('[127.0.0.1]');

// Create the Mailer using your created Transport
$mailer = Swift_Mailer::newInstance($transport);

根据您对 HELO 命令的响应，我猜测您的 SMTP 服务器不喜欢/理解 IPv6。