Tennessee Code Title 45. Banks and Financial Institutions § 45-10-111

The copy of the records must be delivered to the issuer in the manner and location specified in the subpoena.  If the subpoena does not specify a manner of delivery, then the records must be delivered by means of any method agreed upon by the issuer and the custodian, including electronic submission.  If the issuer and custodian cannot agree to the manner of delivery, then the custodian may, at its option, deliver the records to the attention of the issuer by physical delivery, U.S. mail, or by means of a delivery service.  If the location of the delivery of the records is not specified in the subpoena, then the custodian shall deliver the records directly to the issuer.