How to solve SMTP connection problem in CodeIgniter? - php

Question

I have a mail function. And when I start the service it send e-mail from my array. My array include 60 mail. When start the service it send 10-15 mail and after got error like this.
from: The following SMTP error was encountered:
Unable to send data: QUIT
quit:
The following SMTP error was encountered:
Unable to send email using PHP SMTP. Your server might not be configured to send mail using this method.
User-Agent: CodeIgniter
function sendMail($to,$cc="",$subject,$message,$title="",$attach="",$from="")
{
$CI = & get_instance();
$CI->load->library("email");
$CI->email->clear(TRUE);
$CI->email->set_newline("\r\n");
if($title==""){
$title="q Group";
}
if($from=="") {
$from="q#q.com.tr";
}
$CI->email->from($from, $title);
if($cc<>"")
$CI->email->cc($cc);
$CI->email->subject($subject);
$CI->email->message($message);
if($attach<>"")
{
$CI->email->attach($attach);
}
$mailList = explode(",",$to);
$sendMailList = "";
foreach ($mailList as $key=>$item) {
if (filter_var($item, FILTER_VALIDATE_EMAIL)) {
$sendMailList .=$item.",";
}
else{
MailLogModel::setLog($item,$subject,0,"Mail Adresi Hatalı");
if(count($mailList)==1)
return ["status"=>false,"message"=>"Mail Adresi Hatalı"];
}
}
$sendMail = substr($sendMailList,0,-1);
$CI->email->to($sendMail);
if (! $CI->email->send()){
MailLogModel::setLog($sendMail,$subject,0,html_entity_decode(imap_utf8($CI->email->print_debugger('headers','subject'))));
return ["status"=>false,"message"=>$CI->email->print_debugger(array('headers'))];
}
else{
MailLogModel::setLog($sendMail,$subject,1);
return ["status"=>true];
}
}
My config file is here:
$config['protocol'] = "smtp";
$config['SMTPAuth'] = true;
$config['smtp_host'] = "mail.MYSERVICE.com.tr";
$config['smtp_user'] = "";
$config['smtp_pass'] = "";
$config['smtp_port'] = "25";
$config['charset'] = "utf-8";
$config['mailtype'] = "html";
$config['newline'] = "\r\n";
$config['crlf'] = "\r\n";
$config['smtp_timeout'] = 5;
How can I solve this problem?