I have a cron job which sends email to subscribers, using CodeIgniter 3 email class. I have used smtp mail service provided by the host. The cron job gives HTTP 500 error after running for 2-3 mins and sending 453 emails. I have used sleep after sending 400 emails. There are no limits on how many emails the server can send Please review the code below.

    <?php $sn=1;$emailCount=0;
    $config = array(
          'protocol'  => 'smtp',
          'smtp_host' => 'smtp.something.com',
          'smtp_port' => 587,
          'smtp_user' => '[email protected]',
          'smtp_pass' => 'somepass',
          'mailtype'  => 'html',
          'charset'   => 'utf-8',
          'smtp_crypto' => 'tls'
     );
     $this->email->initialize($config);
     log_message("info", "Email Cron job started");
     foreach($member as $row){ 

        $this->email->clear();
        $this->email->set_mailtype("html");
        $this->email->set_newline("\r\n");
        $this->email->from('[email protected]','Sm');
        $this->email->subject($title);
        $this->email->set_header('Header1', 'MIME-Version: 2.5.6');
        $this->email->to(trim($row->email_address));

        ob_start();
        ?>
        <table  border="0" cellpadding="0" cellspacing="0" width="100%">
        <tbody>
        <tr><td height="15">&nbsp;</td></tr>
        <!-- many lines of code just html-->
        <tr><td height="15">&nbsp;</td></tr>
        </tbody>
        </table>
        <?php
        $message = ob_get_contents();
        ob_clean();
        ob_flush();
        $this->email->message($message);
        if($emailCount % 400 == 0 && $emailCount != 0)
        {
           sleep(15);
           log_message("info", "Sleep.Emails Sent: ".$emailCount); 
        }
        if($this->email->send())
        {
           $emailCount++;    
        }
        else
        {
           log_message("info", "Error! Total Emails Sent: ".$emailCount);
        }
        $sn++;
     } 
     log_message("info", "Total Emails Sent: ".$emailCount);
     log_message("info", "Total Loop Ran: ".$sn);?>  

Tried the sleep() but didn't work.

0 Answers