'ID', 'subject' => 'Subject', 'html_body' => 'HtmlBody', 'text_body' => 'TextBody', 'recipient_name' => 'RecipientName', 'recipient_mail' => 'RecipientMail', 'is_sent' => 'IsSent', 'send_attempts' => 'SendAttempts', 'create_time' => 'CreateTime', 'last_attempt_time' => 'LastAttemptTime', 'last_error_info' => 'LastErrorInfo' ]; } ?>