使用PHP使用PHPmailer发送邮件时遇到身份验证错误

Question

I am getting the following error while sending the email using PHPMailer .

Error:

SMTP Error: Could not authenticate.

I am explaining my code below.

<?php
require_once('/var/www/oditek.in/subhra/phpmailer/class.phpmailer.php');
function SentMail($to,$from,$subject,$msg_body,$reply_to='',$cc='',$files=''){      
    $mail = new PHPMailer();
    $body = $msg_body;
    $mail->IsSMTP();
    $mail->Host       = "smtp.sendgrid.net";
    $mail->SMTPAuth   = true;                    
    $mail->SMTPSecure = 'tls';   
    $mail->Port       = 587;
    $mail->Username   = "tuurbus@gmail.com"; 
    $mail->Password   = "abcd_bs@123";
    $mail->SetFrom($from,'tuurbus');
    if($reply_to!=''){
        $mail->AddReplyTo($reply_to,'tuurbus');
    }
    $mail->Subject    = $subject;
    $mail->MsgHTML($body);
    $address = $to;
    $mail->AddAddress($address);
    if(count($files) > 0 && $files!=''){
        for($i=0;$i<=count($files);$i++){
            if(is_file($files[$i])){
                $mail->AddAttachment($files[$i]);
            }
        }
    }
    if($cc!=''){
        $addrcc = explode(',',$cc);
        foreach ($addrcc as $addresscc) {
            $mail->AddCC(trim($addresscc));
        }
    }
    if($mail->Send()){
        return 1;
    }else{
        return 0;
    }
}
$to="tuurbus@gmail.com";
$from="subhrajyotipradhan@gmail.com";
$subject="Test email";
$msg_body="Hi, This is customize request";
$ret = SentMail($to,$from,$subject,$msg_body);
echo $ret;exit;
?>

I have also turned on the the less secured app option in gmail but still same error is coming. This is the implementation like contact us form in website. User will send the email request to admin( here tuurbus ). Please help me to resolve this issue.

Answer 1

Download Phpmailer package from https://github.com/PHPMailer/PHPMailer/ link & copy into your project and extract zip folder into your project and change the your code as following also check your password ,email id. Its works by my side.

<?php
include_once('PHPMailerAutoload.php');
function SentMail($to,$from,$subject,$msg_body,$reply_to='',$cc='',$files=''){      
    $mail = new PHPMailer();
    $body = $msg_body;
    $mail->IsSMTP();
    $mail->Host       = "smtp.gmail.com";
    $mail->SMTPAuth   = true;                    
    $mail->SMTPSecure = 'tls';   
    $mail->Port       = 587;
    $mail->Username   = "tuurbus@gmail.com"; 
    $mail->Password   = "abcd_bs@123";
    $mail->SetFrom($from,'tuurbus');
    if($reply_to!=''){
        $mail->AddReplyTo($reply_to,'tuurbus');
    }
    $mail->Subject    = $subject;
    $mail->MsgHTML($body);
    $address = $to;
    $mail->AddAddress($address);
    if(count($files) > 0 && $files!=''){
        for($i=0;$i<=count($files);$i++){
            if(is_file($files[$i])){
                $mail->AddAttachment($files[$i]);
            }
        }
    }
    if($cc!=''){
        $addrcc = explode(',',$cc);
        foreach ($addrcc as $addresscc) {
            $mail->AddCC(trim($addresscc));
        }
    }
    if($mail->Send()){
        return 1;
    }else{
        return 0;
    }
}
$to="tuurbus@gmail.com";
$from="subhrajyotipradhan@gmail.com";
$subject="Test email";
$msg_body="Hi, This is customize request";
$ret = SentMail($to,$from,$subject,$msg_body);
echo $ret;exit;
?>

Answer 2

Try:

$mail->Host = gethostbyname('smtp.gmail.com'); 
// if your network does not support SMTP over IPv6