static function send_mail()
 {
     global $wpdb;
     $attempted_count = SendPress_Option::get('autocron-per-call', 25);
     if (SendPress_Manager::limit_reached($attempted_count)) {
         return;
     }
     $count = SendPress_Data::emails_in_queue();
     $email_count = 0;
     $attempts = 0;
     SendPress_Email_Cache::build_cache();
     if ($count > 0) {
         for ($i = 0; $i < $attempted_count; $i++) {
             $email = SendPress_Data::get_single_email_from_queue();
             SendPress_Queue::send_the_queue($email);
         }
     }
 }
 static function send_optin($subscriberID, $listids, $lists)
 {
     //SendPress_Error::log('send optin');
     $subscriber = SendPress_Data::get_subscriber($subscriberID);
     $l = '';
     $optin_id = 0;
     foreach ($lists as $list) {
         if (in_array($list->ID, $listids)) {
             $l .= $list->post_title . " <br>";
             if ($optin_id === 0) {
                 $o = get_post_meta($list->ID, 'opt-in-id', true);
                 if ($o === "") {
                     $o = 0;
                 }
                 if ($o > 0) {
                     $optin_id = $o;
                 }
             }
         }
     }
     //	add_filter( 'the_content', array( $this, 'the_content') );
     $optin = $optin_id > 0 ? $optin_id : SendPress_Data::get_template_id_by_slug('double-optin');
     $user = SendPress_Data::get_template_id_by_slug('user-style');
     SendPress_Posts::copy_meta_info($optin, $user);
     SendPress_Email_Cache::build_cache_for_system_email($optin);
     $go = array('from_name' => 'queue', 'from_email' => 'queue', 'to_email' => $subscriber->email, 'emailID' => intval($optin), 'subscriberID' => intval($subscriberID), 'subject' => '', 'listID' => 0);
     $id = SendPress_Data::add_email_to_queue($go);
     SPNL()->load("Subscribers_Tracker")->add(array('subscriber_id' => intval($subscriberID), 'email_id' => intval($optin), 'tracker_type' => SendPress_Enum_Tracker_Type::Confirm));
     $confirm_email = SendPress_Data::get_single_email_from_queue_by_id($id);
     SendPress_Email_Cache::build_cache_for_system_email($confirm_email->id);
     $confirm_email->is_confirm = true;
     SendPress_Queue::send_the_queue($confirm_email);
     /*
     $message = new SendPress_Email();
     $message->id($optin);
     $message->subscriber_id($subscriberID);
     $message->remove_links(true);
     $message->purge(true);
     $html = $message->html();
     $message->purge(false);
     $text = $message->text();
     
     $code = array(
     		"id"=>$subscriberID,
     		"listids"=> implode(',',$listids),
     		"view"=>"confirm"
     	);
     $code = SendPress_Data::encrypt( $code );
     
     if( SendPress_Option::get('old_permalink') || !get_option('permalink_structure') ){
     	$link = home_url() ."?sendpress=".$code;
     } else {
     	$link = home_url() ."/sendpress/".$code;
     }
     
     $href = $link;
     $html_href = "<a href='". $link  ."'>". $link  ."</a>";
     
     
     $html = str_replace("*|SP:CONFIRMLINK|*", $html_href , $html );
     $text = str_replace("*|SP:CONFIRMLINK|*", $href , $text );
     $text = nl2br($text);
     $sub =  $message->subject();
     SPNL()->load("Subscribers_Tracker")->add( array('subscriber_id' => intval( $subscriberID ), 'email_id' => intval( $optin), 'tracker_type' => SendPress_Enum_Tracker_Type::Confirm ) );
     //SendPress_Data::register_event( 'confirm_sent', $subscriberID );			
     SendPress_Manager::send( $subscriber->email, $sub , $html, $text, false );
     */
 }