Codeigniter：您的服务器可能未配置为使用此方法发送邮件。 无法使用 PHP SMTP 发送电子邮件

Question

This was working on my live server before then suddenly it's no longer sending emails. Here's the error I got:

220 smtp30.relay.iad3a.emailsrvr.com ESMTP - VA Code Section 18.2-152.3:1 forbids use of this system for unsolicited bulk electronic mail (Spam) hello: 250-smtp30.relay.iad3a.emailsrvr.com 250 ENHANCEDSTATUSCODES Failed to send AUTH LOGIN command. Error: 554 5.7.1 authentication restricted (Z1E/233FC14) from: 554 5.7.1 authentication restricted (Z1E/233FC14) The following SMTP error was encountered: 554 5.7.1 authentication restricted (Z1E/233FC14) to: 503 5.5.1 Bad sequence of commands The following SMTP error was encountered: 503 5.5.1 Bad sequence of commands data: 503 5.5.1 Bad sequence of commands The following SMTP error was encountered: 503 5.5.1 Bad sequence of commands 221 2.7.0 Error: I can break rules, too. Goodbye. The following SMTP error was encountered: 221 2.7.0 Error: I can break rules, too. Goodbye. Unable to send email using PHP SMTP. Your server might not be configured to send mail using this method.

If I run it on my local server it's sending emails. I even tried changing the ports to 587 and I still got error and it's not sending. What would be the issue in my code. Thank you!

Here's my code:

$from = "no-reply@sample.com";
$from_name = "Daily logs";

$config['smtp_host']    = 'ssl://secure.sample.com';
$config['smtp_user']    = 'no-reply@sample.com';
$config['smtp_pass']    = ********;
$config['smtp_port']    = '465';

$config['protocol']     = 'smtp';

$config['mailtype']     = 'html';
$config['validate']     = 'FALSE';
$message                = $email_message['html'];


$CI->email->initialize($config);
$CI->email->from($from, $from_name);
$CI->email->to($email_message['to']);
$CI->email->subject("Sample - ".$email_message['subject']);

$path=$_SERVER["DOCUMENT_ROOT"];
$file = $path.'/tmp/sample_data/sample_data_'.strtotime(date("y-m-d", strtotime('-1 day'))).'.csv';
$CI->email->attach($file);

$CI->email->message($message);
if(@$CI->email->send()){
     $return = (object) array('http_response_code' => 200); 
}
else{
     echo $CI->email->print_debugger();
}

Answer 1

check if your configuration is write

$config['smtp_host']    = 'ssl://secure.sample.com';
$config['smtp_user']    = 'no-reply@sample.com';
$config['smtp_pass']    = ********;

I think you can try those points by gmail and then move to your own configuration just for testing your code is fine. some times the server might not allow you so don't wast time. links for gmail smtp Send email using the GMail SMTP server from a PHP page and Sending email with gmail smtp with codeigniter email library