How to send Email from mochahost SMTP server

Hello I am trying to send email from mochahost server. This is the link that mocha host technical adviser provided me. [url=http://www.mochasupport.com/kayako/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=555]PHP SMTP Authentication I am following this but its not sending any email. Kindly guide me what i am doing wrong here. First kindly tell me what does "Mail.php" contains? and guide me what i am doing wrong in this code. The program is neither generating any error message nor printing any output. [PHP] "; $to = "Taha "; $subject = "Hi!"; $body = "Hi,\n\nHow are you?"; $host = "111.11.11.127"; $username = "tahakirmani@Hotmail.com"; $password = "password"; $headers = array ('From' => $from, 'To' => $to, 'Subject' => $subject); $smtp = Mail::factory('smtp', array ('host' => $host, 'auth' => true, 'username' => $username, 'password' => $password)); $mail = $smtp->send($to, $headers, $body); if (PEAR::isError($mail)) { echo("

" . $mail->getMessage() . "

"); } else { echo("

Message successfully sent!

"); } ?> [/PHP]