function send_email($to_email, $subject, $message1)
{
　　require_once ‘Mandrill.php‘;
　　$apikey = ‘XXXXXXXXXX‘; //specify your api key here
　　$mandrill = new Mandrill($apikey);

　　$message = new stdClass();
　　$message->html = $message1;
　　$message->text = $message1;
　　$message->subject = $subject;
　　$message->from_email = "blog@koonk.com"; //Sender Email
　　$message->from_name = "KOONK"; //Sender Name
　　$message->to = array(array("email" => $to_email));
　　$message->track_opens = true;

　　$response = $mandrill->messages->send($message);
}

2 发送邮件