从PHP页面使用GMail SMTP服务器发送电子邮件

Question

从PHP页面使用GMail SMTP服务器发送电子邮件

我试图从PHP页面通过GMail的SMTP服务器发送电子邮件，但是我收到此错误：

身份验证失败[SMTP：SMTP服务器不支持身份验证（代码：250，响应：mx.google.com为您服务，[98.117.99.235] SIZE 35651584 8BITMIME STARTTLS ENHANCEDSTATUSCODES PIPELINING）]

有人可以帮忙吗？这是我的代码：

<?php

require_once "Mail.php";

$from = "Sandra Sender <[e-mail]>";

$to = "Ramona Recipient <[e-mail]>";

$subject = "Hi!";

$body = "Hi,\n\nHow are you?";

$host = "smtp.gmail.com";

$port = "587";

$username = "[e-mail]";

$password = "testtest";

$headers = array ('From' => $from,

  'To' => $to,

  'Subject' => $subject);

$smtp = Mail::factory('smtp',

  array ('host' => $host,

    'port' => $port,

    'auth' => true,

    'username' => $username,

    'password' => $password));

$mail = $smtp->send($to, $headers, $body);

if (PEAR::isError($mail)) {

  echo("<p>" . $mail->getMessage() . "</p>");

 } else {

  echo("<p>Message successfully sent!</p>");

 }

?>