18.(1) The Government may, by rule, provide for the redelivery to the sender, or delivery to another addressee at the request of the sender without reference to the consent of the addressee and subject to such conditions (if any) as may be deemed fit, of any postal article in course of transmission by post. (2) Save as provided by any rules that may be made under sub-section (1), the sender shall not be entitled to recall a postal article in course of transmission by post or to ask for its delivery to another addressee.