php - 尝试使用 SwiftMailer 和 Sendgrid 发送电子邮件时出现致命错误

尝试使用 swiftmailer 和 sendgrid smtp 发送电子邮件时出现此错误

致命错误: *未捕获的异常 'Swift_TransportException' 带有消息 '预期响应代码 250 但得到代码 ""，消息为 ""'*

这是我的代码:

$hdr = new SmtpApiHeader();


// Set all of the above variables
$hdr->addTo($toList);
$hdr->addSubVal('-name-', $nameList);
$hdr->addSubVal('-time-', $timeList);

// Specify that this is an initial contact message
$hdr->setCategory("initial");

// The subject of your email
$subject = 'Example SendGrid Email';

// Where is this message coming from. For example, this message can be from
// [email protected], [email protected]
$from = array('[email protected]' => 'Mupiz');
$to = array('[email protected]'=>'AN',"[email protected]"=>"AN2s");

$text="Hello -name-
       Thank you for your interest in our products. We have set up an appointment
             to call you at -time- EST to discuss your needs in more detail.

                Regards,

                Fred, How are you?
      ";
$html = "
<html>
  <head></head>
  <body>
    <p>Hello -name-,<br>
       Thank you for your interest in our products. We have set up an appointment
             to call you at -time- EST to discuss your needs in more detail.

                Regards,

                Fred, How are you?<br>
    </p>
  </body>
</html>
";

// Your SendGrid account credentials
$username = 'XXXX';
$password = 'XXXX';

// Create new swift connection and authenticate
$transport = Swift_SmtpTransport::newInstance('smtp.sendgrid.net', 25);
$transport ->setUsername($username);
$transport ->setPassword($password);
$swift = Swift_Mailer::newInstance($transport);

// Create a message (subject)
$message = new Swift_Message($subject);

// add SMTPAPI header to the message
// *****IMPORTANT NOTE*****
// SendGrid's asJSON function escapes characters. If you are using Swift Mailer's
// PHP Mailer functions, the getTextHeader function will also escape characters.
// This can cause the filter to be dropped.
$headers = $message->getHeaders();
$headers->addTextHeader('X-SMTPAPI', $hdr->asJSON());

// attach the body of the email
$message->setFrom($from);
$message->setBody($html, 'text/html');
$message->setTo($to);
$message->addPart($text, 'text/plain');

// send message
if ($recipients = $swift->send($message, $failures))
{
// This will let us know how many users received this message
// If we specify the names in the X-SMTPAPI header, then this will always be 1.
echo 'Message sent out to '.$recipients.' users';
}
// something went wrong =(
else
{
echo "Something went wrong - ";
print_r($failures);
}

一个主意？

谢谢

最佳答案

造成这种情况的原因可能有很多。最有可能的情况是您的服务器已关闭与外部主机的连接。其他可能性是您使用的是具有 openSSL 错误的旧版 PHP，或者您的速率受到某些限制。

您应该查看此问题以了解有关外部主机问题的详细信息:send mails via sendgrid

另外，如果您想使用 SendGrid 发送电子邮件，则应使用 SendGrid PHP 库。它解决了 Swift 和发送的一大堆微妙的细微差别。此外，它允许您访问 HTTP API，以防您因任何原因无法使用 SMTP。

https://github.com/sendgrid/sendgrid-php

完整披露 :我是 SendGrid 的开发人员布道者，不时研究 PHP 库。

关于php - 尝试使用 SwiftMailer 和 Sendgrid 发送电子邮件时出现致命错误，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/11158845/