Mass. Gen. Laws ch. 110G, § 15
(a) Unless otherwise agreed between the sender and the recipient, an electronic record is sent when it:—
(b) Unless otherwise agreed between a sender and the recipient, an electronic record is received when:
(d) Unless otherwise expressly provided in the electronic record or agreed between the sender and the recipient, an electronic record is deemed to be sent from the sender's place of business and to be received at the recipient's place of business. For purposes of this subsection, the following rules shall apply:—