Сервер сообщает об ошибке incorrect authentication data

Sometimes you encounter an error message such as Authentication failed 535 Incorrect authentication data or SMTP Error (535): Authentication failed when logging into Outlook, or any other email client. One possible cause is because the email password is too weak.

Luckily, the problem can be easily solved. All you need to do is log into your webmail and change the password to a strong and complex password.

A Strong and Complex Password is:

1. A combination of lowercase and uppercase alphabets, numbers and symbols.

2. Not a dictionary English word.

3. Not a number sequences.

An example of a good password is: SfR2$3!#

Performing this change also has the added benefit of securing your email account, lowering the likelihood that your account will be compromised. Once the password has been changed in webmail, be sure to change the password in Outlook as well, which will resolve the error.

2015-03-05 11:43:41 fixed_login authenticator failed for (ispip.net) ([XX.XX.XX.XX]) [YY.YY.YY.YY]: 535 Incorrect authentication data (set_id=user@domain.tld)

In cPanel Exim servers, especially ones enabled with SMTP authentication, “535 Incorrect authentication data” is a common error message seen in mail logs. 

See how our website support experts help you!

The vast majority of these error instances represent blocked connections from botnets trying to relay spam. This is a security feature to protect the mail server from spam, and cannot be disabled.

However, valid customers might report this error under two circumstances:

1. Incorrect login information

Mail users sometimes enter the wrong format of user name (username vs username@domain.com), or put in the wrong password (especially if the auto-generated password contains too many special characters).

This can give them the error “535 Incorrect Authentication Data” while attempting to send mails with this wrong authentication details, as the mail server cannot validate the login.

Effective solution in such cases is to give them a password easy to remember (but that is also strong – like Halloween=Oct31), and educate mail users on the proper username format.

[ You don’t have to lose your sleep over lost emails. Get our professional help to fix your mail errors at affordable pricing. ]

2. Corrupted mail folder permissions

‘535 Incorrect Authentication Data’ results when mailbox permissions are changed due to migrations, or an account/server update. This can be quickly fixed by running the ‘/scripts/mailperm’ script from terminal, or by going to:

‘WHM >> Email >> Repair Mailbox permissions’

This error is often reported by mail users who maintain multiple mail devices, and forget to update login details in one of their devices.

With years of experience resolving common causes of all service related errors, our website support team is able to quickly identify the cause and deliver immediate solution for all support queries.

[ Need help resolving email errors in your sites? Get assistance from our website experts to fix all your website errors instantly. ]

var google_conversion_label = «Blp0CLCojHIQ0aD71QM»;

I have the same php script running on localhost — my PC with XAMPP and on a hosted server. It works from my PC, but not from the hosted server.

When I send it from the hosted server, I get the following output:

SMTP -> ERROR: Password not accepted from server: 535 Incorrect authentication data  
SMTP -> ERROR: RCPT not accepted from server: 550-Please turn on SMTP Authentication in your mail client, or login to the 550-IMAP/POP3 server before sending your message. dev.camppage.com 550-(patchvalues.com) [205.234.141.238]:50958 is not permitted to relay through 550 this server without authentication.  
SMTP Error: The following recipients failed: jdorner4@gmail.com FAILED

I suspect there is a configuration setting that needs to be changed on the server, but I don’t know which one. Any advice would be greatly appreciated!

Here is the code:

function send_gmail ($recipients, $subject, $message, $attachment_filenames = array()) 
{
  global $email_address, $email_password, $email_name;
  require_once ($_SERVER['DOCUMENT_ROOT']. '/php/PHPMailer/class.phpmailer.php');   

  $body  = $message;
  $body  = str_replace("\\", '', $body);
  $mail = new PHPMailer();
  $mail->CharSet = "UTF-8";
  $mail->IsSMTP();
  $mail->Host       = "smtp.gmail.com";      // sets GMAIL as the SMTP server
  $mail->SMTPDebug  = 1;                     // enables SMTP debug information (for testing) 0 - none; 1 - errors & messages; 2 - messages only
  $mail->SMTPAuth   = true;                  // enable SMTP authentication
  $mail->SMTPSecure = "ssl";                 // sets the prefix to the servier
  $mail->Port       = 465;                   // set the SMTP port
  $mail->Username   = $email_address;  // GMAIL username
  $mail->Password   = $email_password; // GMAIL password
  $mail->SetFrom($email_address);
  $mail->FromName   = $email_name;
  $mail->AddReplyTo($email_address,$email_name);
  $mail->Subject    = $subject;
  $mail->MsgHTML($body);
  $mail->IsHTML(true); // send as HTML

  if (isset ($recipients[0]))
  {
    foreach ($recipients AS $to)
    {
        $to_pieces = explode (",", $to, 2);
        $to_email = trim ($to_pieces[0]);
        if (isset ($to_pieces[1]))
            $to_name = trim ($to_pieces[1]);
        else
            $to_name = " ";
        $mail->AddAddress($to_email, $to_name);
    }
    $mail->IsHTML(true); // send as HTML

    if ($mail->Send()){
        return TRUE;
    } else {
        return FALSE;
    }
} 
else 
{
    return FALSE;
}
}

TIA

Материал из Planfix

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