Electronic Communications and Transactions [ No. 21 of 2009 245 (a) used in the conclusion or performance of an agreement shall be treated as having been sent by the originator when it enters an information system outside the control of the originator or, if the originator and addressee arc in the same information system, w h e n it is capable o f being retrieved by t h e addressee; (b) shall be treated as having been received by the addressee when the complete data message enters an information s y s t e m d e s i g n a t e d or used for that p u r p o s e by t h e a d d r e s s e e a n d is c a p a b l e o f b e i n g r e t r i e v e d a n d processed by t h e addressee; and (c) shall be treated as having been sent from the originator's usual place o f business or residence and as having been received at the addressee's usual place o f business or residence. 17. A s between t h e originator and the addressee of a data message an expression of intent or other statement shall not be without legal force and effect merely on t h e grounds t h a t — Expression of intent or other statement (a) it is in t h e form o f a data message; or (b) it is not evidenced by an electronic signature, but by other m e a n s from w h i c h s u c h p e r s o n ' s i n t e n t or o t h e r i t e t e m e n t can be inferred. 18. A data message is ihat o f the originator if it w a s sent b y — (a) t h e originator personally; (b) a p e r s o n w h o had a u t h o r i t y t o act on b e h a l f o f t h e originator in respect of that data message; or Attribution of data messages to originator (c) an information system p r o g r a m m e d by, or on behalf of, the originator to operate automatically unless it is proved that the information system did not properly execute such programming. 1 9 . (1) A n a c k n o w l e d g m e n t of receipt o f a data message shall not be necessary to give legai effect to that message. (2) An a c k n o w l e d g m e n t of receipt m a y be given b y — (a) any communication by t h e addressee, whether automated or otherwise; or (b) any conduct of the addressee, sufficient to indicate to t h e originator that t h e data message has been received. Acknowledgment of receipt of data message