wp_mail not sending inside gform function

Is there any reason why wp_mail would not work inside this function?

[php]
add_action("gform_after_submission_25", "replymessage", 10, 2);
function replymessage($entry,$form) {
	global $current_user;
	$message = array(
	'post_title' => 'ref#'.$current_user->ID,
	'post_type' => 'message',
	'post_status' => 'publish',
	'post_author' => $current_user->ID
	);
	$post_id = wp_insert_post($message);
	add_post_meta($post_id,'ecpt_messagecontent',$entry['1']);
	add_post_meta($post_id,'ecpt_messagestatus','unread');
	add_post_meta($post_id,'ecpt_messagerecipient',$entry['2']);
	add_post_meta($post_id,'ecpt_messagereply',$entry['3']);

	//update post as read
	update_post_meta($entry['3'],'ecpt_messagestatus','replied');
	wp_mail(get_user_meta($entry['2'], 'user_email', true),'You have a new message from '.get_user_meta($current_user->ID, 'first_name', true),$entry['1']);
}

I've tested wp_mail outside this function and it works fine???

Could it be something to do with the order this action is being fired in?
everything else inside this function works fine except for the mail side of things
I had to do this this way so that the recipient never finds out the email address of the person sending the message

Thanks in advance

Thanks guys,
@david, your code works on my site perfectly, this is very strange. Everything in the function i posted works EXCEPT for the email side of things, yet your function works fine. I can't figure this at all!

I have fixed it guys, thanks for your awesome support as usual and Merry Christmas!