无法发送消息。邮件程序错误：SMTP 错误：无法验证

Question

伙计们，我也面临同样的问题，例如无法发送邮件错误，我在谷歌上搜索并尝试了所有方法，但仍然遇到同样的问题 请帮我解决我的错误

方法一：

我允许不太安全的应用程序

方法二：

我输入正确的电子邮件和密码

<?php 

use PHPMailer\PHPMailer\PHPMailer; 
use PHPMailer\PHPMailer\Exception; 

require 'vendor/autoload.php'; 

$mail = new PHPMailer(true); 

try { 
    $mail->SMTPDebug = 2;                                    
    $mail->isSMTP();                                             
    $mail->Host  = 'smtp.gmail.com;';                    
    $mail->SMTPAuth = true;                          
    $mail->Username = '****@gmail.com';              
    $mail->Password = '*******';                         
    $mail->SMTPSecure = 'tls';                           
    $mail->Port  = 587; 

    $mail->setFrom('*************', 'Name');         
    $mail->addAddress('*****************'); 
    $mail->addAddress('***********', 'Name'); 
    
    $mail->isHTML(true);                                 
    $mail->Subject = 'Subject'; 
    $mail->Body = 'HTML message body in <b>bold</b> '; 
    $mail->AltBody = 'Body in plain text for non-HTML mail clients'; 
    $mail->send(); 
    echo "Mail has been sent successfully!"; 
} catch (Exception $e) { 
    echo "Message could not be sent. Mailer Error: {$mail->ErrorInfo}"; 
} 

?> 

Answer 1

您的 Gmail 可能存在身份验证问题。请确保您在连接到 Gmail 之前已完成以下步骤。

# Visit https://accounts.google.com
#
# 1. Click on [Security] menu
# 2. Scroll to section [Less secure app access] and set it to ON
# 3. Scroll to section [Signing in to Google] and set [Use your phone to sign in] to OFF 
# 4. Scroll to section [Signing in to Google] and set [2-step Verification] to OFF 
#