Disable emails on free purchases

function jp_no_email_free( $payment_id ) {

	$amount = edd_get_payment_amount( $payment_id );

	if ( 0 == $amount ) {

		remove_action( 'edd_complete_purchase', 'edd_trigger_purchase_receipt', 999, 1 ); // This disables customer purchase receipts

		remove_action( 'edd_admin_sale_notice', 'edd_admin_email_notice', 10, 2 ); // This disables email notices to admins

	}

}

add_action( 'edd_complete_purchase', 'jp_no_email_free', 998, 1 );