Ind. Code § 27-1-12-35
(c) For the purposes of this section, payment shall be deemed to have been received by a resident when manually delivered by an agent or representative of the insuring company or when deposited by the insuring company in the United States mails, postage prepaid, and directed to the resident at his last known address as evidenced by the business records of the insuring company.
As added by Acts 1978, P.L.8, SEC.15.