smtp login to gmail won't work

Hi,
I'm using the PEAR Mail class to try and connect to the gmail's smtp server.
All I get is:
authentication failure [SMTP: SMTP server does no support authentication (code: 250, response: mx.google.com at your service, [59.167.101.53] SIZE 20971520 8BITMIME STARTTLS ENHANCEDSTATUSCODES)]

Here is my code:

you should use SSL autentication, Gmail forces you to use it !

Hello ! I am new in codwalker !

there is a webform on my website, it has a function to send confirmation email to user. & am using google apps as mail.domain.com,

webform doesn't send confirmation user,
why so

error occurring like this
Failed to connect to mail.makemycreative.in:465 [SMTP: Failed to connect socket: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond. (code: -1, response: )]


this is my script part--------------------------
$md5_id = md5($user_id);
mysql_query("update users set md5_id='$md5_id' where id='$user_id'");
// echo "<h3>Thank You</h3> We received your submission.";

$message =
"Thank you for registering with us. Here are your login details...\n

User ID: $user_name
Email: $usr_email \n
Passwd: $_POST[pwd] \n
Activation code: $activ_code \n

*****ACTIVATION LINK*****\n
http$host$path/activate.php?user=$md5_id&activ_code=$activ_code

Thank You

Administrator
$host_upper
__________________________________________________ ____
THIS IS AN AUTOMATED RESPONSE.
***DO NOT RESPOND TO THIS EMAIL****
";

//ask the hosting provider what to put here.
$host = "mail.makemycreative.in";
$username = "online";
$password = "sangyash5";


//mail body
$subject = "Login Details";
$from = "Member Registration <online@makemycreative.in>";
$body = $message;

$headers = array ('From' => $from,
'To' => $usr_email,
'Subject' => $subject);
$smtp = Mail::factory('smtp',
array ('host' => $host,
'auth' => true,
'port' => 465,
'username' => $username,
'password' => $password));

$mail = $smtp->send($to, $headers, $body);

if (PEAR::isError($mail)) {
echo("<p>" . $mail->getMessage() . "</p>");
} else{

header("Location: thankyou.php");
exit();
}
}


?>
---------------------------------------------
please help me

Message