Send admin notification when a new post published - WordPress

function mquetr_notify_admin_on_publish( $new_status, $old_status, $post ) {
	$post_type = 'your_post_type';
	if ( $new_status !== 'publish' || $old_status === 'publish' )
		return;
	if ( ! $post_type = get_post_type_object( $post->post_type ) )
		return;

	// Recipient, in this case the administrator email
	$emailto = get_option( 'admin_email' );

	// Email subject, "New {post_type_label}"
	$subject = 'New ' . $post_type->labels->singular_name;

	// Email body
	$message = 'View it: ' . get_permalink( $post->ID ) . "\nEdit it: " . get_edit_post_link( $post->ID );

	wp_mail( $emailto, $subject, $message );
}

add_action( 'transition_post_status', 'mquetr_notify_admin_on_publish', 10, 3 );