Indiana Code Title 26. Commercial Law § 26-2-8-114

Sec. 114. (a) Unless otherwise agreed between the sender and the recipient, an electronic record is sent when the information is addressed or otherwise directed properly to the recipient and either:

(b) Unless otherwise agreed between the sender and the recipient, an electronic record is received when:

(c) Subsection (b) applies even if the place the information processing system is located is different from the place the electronic record is deemed to be received under subsection (d).

(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 is deemed to be received at the recipient's place of business.  For purposes of this subsection, the following rules apply:

(e) An electronic record is effective when received even if no individual is aware of its receipt.

(f) Receipt of an electronic acknowledgment from an information processing system described in subsection (b) establishes that a record was received but, in itself, does not establish that the content sent corresponds to the content received.

(g) If a law other than this chapter requires that a record be sent or received, the requirement is satisfied by an electronic record only if it is sent in accordance with subsection (a) or received in accordance with subsection (b).  If a person is aware that an electronic record purportedly sent under subsection (a), or purportedly received under subsection (b), was not actually sent or received, the legal effect of the sending or receipt is determined by other applicable law.  Except to the extent permitted by the other law, this subsection may not be varied by agreement.