SMTP Login Details

    // enable SMTP authentication
    $mail->SMTPAuth   = true;      
 
    // sets SMTP port
    $mail->Port = 25;
 
    // SMTP account username   
    $mail->Username   = "[email protected]";
 
    // SMTP account password   
    $mail->Password   = "itachairman"; 
        
    $mail->SetFrom("[email protected]", "Samhita");
    $mail->AddReplyTo("[email protected]","Samhita");
    $mail->Subject    = $subject;
    $mail->MsgHTML($body);
 
    // To address
    $mail->AddAddress($to);
 
   

Source: http://pastebin.com/raw.php?i=tiLVXAWn