错误8085#0：*71722上游超时

Question

目前，我正在尝试将Phpmailer用于一个学校项目。我对服务器和nginx了解不多。当我使用phpmailer的代码时，似乎没有发生任何事情，但过了一段时间后，我收到了这个错误警报：

从上游读取响应头时出现错误8085#0：*71722上游超时(110:连接超时)，客户端: 2.203.50.189，服务器: delivery.nginx.xxxxxxxxxxxxxxxxxxxx.net，请求："POST /register.php HTTP/1.1"，上游："fastcgi://127.0.0.1:9000"，主机："xxxxxxxxxxxxxxxxxxxxxxxx.net"，referrer："http://xxxxxxxxxxxxxxxxxxxxxx.net“

如果有人知道如何解决这个问题，那就太棒了。非常感谢！

phpmailer的代码：

<?php
    use PHPMailer\PHPMailer\PHPMailer;
    date_default_timezone_set('Etc/UTC');
            require 'vendor/autoload.php';
            //Create a new PHPMailer instance
            //$mailer = new PHPMailer(true);
            $mail = new PHPMailer();
            //Set who the message is to be sent from
            $mail->isSMTP();
            //Enable SMTP debugging
            // 0 = off (for production use)
            // 1 = client messages
            // 2 = client and server messages
            $mail->SMTPDebug = 2;
            //Set the hostname of the mail server
            $mail->Host = 'xxxxxxxxxxxxxx';
            //Set the SMTP port number - likely to be 25, 465 or 587
            $mail->Port = 587;
            $mail->SMTPSecure = "ssl";
            //Whether to use SMTP authentication
            $mail->SMTPAuth = true;
            //Username to use for SMTP authentication
            $mail->Username = 'xxxxxxxxxxxxxxxxx';
            //Password to use for SMTP authentication
            $mail->Password = 'xxxxxxxxxxxxxxxxx';
            $mail->setFrom('xxxxxxxxxxxxxxxxx', 'xxxxxxxxx');
            //Set an alternative reply-to address
            //$mail->addReplyTo('replyto@example.com', 'First Last');
            //Set who the message is to be sent to

            $mail->AddAddress("xxxxxxxxxxxxx");
            //Set the subject line
            //$mail->Subject = 'PHPMailer SMTP test';
            //Read an HTML message body from an external file, convert                      referenced images to embedded,
            //convert HTML into a basic plain-text alternative body
            //$mail->Body = 'Test';
            $mail->msgHTML("test");
            //Replace the plain text body with one created manually
            //$mail->AltBody = 'This is a plain-text message body';
            //Attach an image file
            //$mail->addAttachment('images/phpmailer_mini.png');
            //send the message, check for errors

            if (!$mail->send()) {
                echo "Mailer Error: " . $mail->ErrorInfo;
            } else {
                echo "Message sent!";
            }
            ?>

Answer 1

来自https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting

您必须使用

使用ssl的端口465

或

端口587，带tls

您当前正在使用587的ssl