無法使用 phpmailer 發送郵件

Question

我已嘗試使用 phpmailer github 示例，但仍然無法正常工作這是代碼：

<?php
//Import PHPMailer classes into the global namespace
//These must be at the top of your script, not inside a function
use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\SMTP;
use PHPMailer\PHPMailer\Exception;

//Load Composer's autoloader
require 'vendor/autoload.php';

//Create an instance; passing `true` enables exceptions
$mail = new PHPMailer(true);

try {
    //Server settings
    $mail->SMTPDebug = SMTP::DEBUG_SERVER;                      //Enable verbose debug output
    $mail->isSMTP();                                            //Send using SMTP
    $mail->Host       = 'smtp.gmail.com';                     //Set the SMTP server to send through
    $mail->SMTPAuth   = true;                                   //Enable SMTP authentication
    $mail->Username   = 'myemailadd@gmail.com';                     //SMTP username
    $mail->Password   = 'mypassword';                               //SMTP password
    $mail->SMTPSecure = PHPMailer::ENCRYPTION_SMTPS;            //Enable implicit TLS encryption
    $mail->Port       = 465;                                    //TCP port to connect to; use 587 if you have set `SMTPSecure = PHPMailer::ENCRYPTION_STARTTLS`

    //Recipients
    $mail->setFrom('myemailadd@gmail.com', 'Mailer');
    $mail->addAddress('myemailadd.com', 'My name');     //Add a recipient
    // $mail->addAddress('myemailadd@gmail.com');               //Name is optional
    // $mail->addReplyTo('info@example.com', 'Information');
    // $mail->addCC('cc@example.com');
    // $mail->addBCC('bcc@example.com');

    //Attachments
    // $mail->addAttachment('/var/tmp/file.tar.gz');         //Add attachments
    // $mail->addAttachment('/tmp/image.jpg', 'new.jpg');    //Optional name

    //Content
    $mail->isHTML(true);                                  //Set email format to HTML
    $mail->Subject = 'Here is the subject';
    $mail->Body    = 'This is the HTML message body <b>in bold!</b>';
    $mail->AltBody = 'This is the body in plain text for non-HTML mail clients';

    $mail->send();
    echo 'Message has been sent';
} catch (Exception $e) {
    echo "Message could not be sent. Mailer Error: {$mail->ErrorInfo}";
} 

我得到的錯誤是：

2022-02-20 08:17:00 SMTP ERROR: Failed to connect to server: php_network_getaddresses: getaddrinfo failed: No such host is known. (0)
SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting
Message could not be sent. Mailer Error: SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting

我在代理服務器上使用 xampp，但仍然無法從 github 故障排除中找到解決方案

Answer 1

你的 DNS 打不通。 這與 PHPMailer 或 PHP 本身無關，而是您的服務器或它所在的網絡。 修復你的 DNS 它就可以工作了。