gform_pre_send_email not working

Hi - I am trying to use this filter to add some functionality but I'm not getting any response from it. It's in the functions.php file here is the code. Basically i am distributing the messages to different recipients and then keeping a record who got what.

add_filter("gform_pre_send_email", "rah_leads_gravity");
function rah_leads_gravity($email){

	// Interaction with message data
	$thisEmailAddress = get_option('nextLead');
	$email["to"] = $thisEmailAddress;
	$senderEmail = $email["from"];
	$senderSubject = $email["subject"];
	$timeSent = time(); 

	// Queue next email address
	rah_leads_update_queue($thisEmailAddress);

	//Update message list
	global $wpdb;
	$wpdb->insert('wp_rah_leads_messages', array(
			toEmail => $thisEmailAddress,
			fromEmail => $senderEmail,
			emailTitle => $senderSubject,
			emailDate => $timeSent
			));

	return $email;
}

http://www.gravityhelp.com/documentation/page/Gform_before_email

Hi,

I'm using 1.7 Beta 2 and this is not working for me. Even something simple, like the example below, does not work.

add_filter("gform_pre_send_email", "route_email");
function route_email($email){
	$email['to'] = 'name@domain.com';
	return $email;
}

I don't know whether to use gform_pre_notification_save or gform_notification. Can you guys help me understand the proper way to do this?