php - SMTP 邮件无法在服务器上工作 在本地主机上工作正常

Question

嗨，我正在使用 smtp 最新文件，并检查网络上可用的所有解决方案，我的 SMTP php 邮件在本地主机上工作，但在服务器上不起作用，我的服务器的网络邮件工作正常。首先，我将数据插入数据库，然后将这些数据插入数据库我想发送管理员电子邮件 ID，我的数据插入到数据库中，邮件发送在本地主机上工作正常，但在服务器上给出错误，无法与服务器连接。我联系了我的托管服务器支持论坛，但他们说这是您的代码问题 这是我的 PHP 代码

 <?php
   if(isset($_POST['Isubmit'])){
   $rname= $_POST['Iname'];
   $remail= $_POST['Iemail'];
   $rcontact= $_POST['Icontact'];
   $rmessage= $_POST['Icomment'];
   $rcourse= $_POST['Icourse'];
    $date=date("Y-m-d");
 $sql=mysqli_query($connect,"INSERT INTO enquiry(`NAME`,`EMAIL_ID`,`MOBILE_NO`,`COMMENT`,`SUBJECT`,`IS_DELETED`,`DATE`)VALUES('".$rname."','".$remail."','".$rcontact."','".$rmessage."','".$rcourse."','1','".$date."')");

//Mail Send Code


 $ToEmail = 'admin@gmail.com'; 
 $EmailSubject = 'Site contact form'; 
 $MESSAGE_BODY = "Dear Sir/Mam,"."\n" ."\n"."New Contact Details are - "."\n"."\n"; 
$MESSAGE_BODY .= "Full Name: ".$rname."\n"."\n"; 
$MESSAGE_BODY .= "Email: ".$remail."\n"."\n"; 
$MESSAGE_BODY .= "Phone: ".$rcontact."\n"."\n"; 
$MESSAGE_BODY .= "Message: ".$rmessage."\n"."\n";
$MESSAGE_BODY .= "Course: ".$rcourse."\n"."\n";
 //SMTP needs accurate times, and the PHP time zone MUST be set
//This should be done in your php.ini, but this is how to do it if you don'thave access to that date_default_timezone_set('Etc/UTC');
       require 'PHPMailer-master/PHPMailerAutoload.php';
      //Create a new PHPMailer instance
     $mail = new PHPMailer;
    //Tell PHPMailer to use SMTP
    $mail->isSMTP();
   //Enable SMTP debugging // 0 = off (for production use)
    $mail->SMTPDebug = 0;
 //Ask for HTML-friendly debug output
  $mail->Debugoutput = 'html';
//Set the hostname of the mail server
  $mail->Host = 'smtp.gmail.com';
   //Set the SMTP port number - 587 for authenticated TLS, a.k.a. RFC4409 SMTP submission
             $mail->Port = 465;
    //Set the encryption system to use - ssl (deprecated) or tls
       $mail->SMTPSecure = 'ssl';
   //Whether to use SMTP authentication
     $mail->SMTPAuth = true;
//Username to use for SMTP authentication - use full email address for gmail
      $mail->Username = "username@gmail.com";//"lino.cspace@gmail.com";
   //Password to use for SMTP authentication
    $mail->Password = "yourpassword";//"lino@123";
      //Set who the message is to be sent from
       $mail->setFrom('admin@gmail.com', 'Admin');
       $mail->addAddress($ToEmail);
      //Set the subject line
        $mail->Subject = 'Enquiry Mail';
       $mail->Body = $MESSAGE_BODY;//'this is test msg on 25-jun.';
       if(!$mail->Send()) {
         echo "Mailer Error: " . $mail->ErrorInfo;
        } else {
           echo "Message sent!<br>";
          }
       }

Answer 1

启用 smtp 调试

$mail->SMTPDebug = 1;

或者

 $mail->SMTPDebug = 2;

然后错误信息将为您提供有关错误的更多信息

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