Electronic Commerce 13 Time of dispatch 20. Unless otherwise agreed between the originator and the addressee, an electronic message is deemed sent when it enters an information processing system outside the control of the originator. Time of receipt 21. Unless otherwise agreed between the originator and the addressee, an electronic message is deemed received— (a) where the addressee has designated an information processing system for the purpose of receiving electronic messages, when the electronic message enters the designated information processing system; or (b) where the addressee has not designated an information processing system for the purpose of receiving electronic messages, when the electronic message comes to the knowledge of the addressee. Place of dispatch 22. Unless otherwise agreed between the originator and the addressee, an electronic message is deemed sent from the originator’s place of business, and— (a) where the originator has more than one place of business, from the place of business that has the closest relationship with the transaction or where there is no place of business that has the closest relationship with the transaction, from the originator’s principal place of business; or (b) where the originator does not have a place of business, from the originator’s ordinary place of residence.