Tennessee Code Title 66. Property § 66-29-111

(a) Except as otherwise provided in § 66-29-113, a security is presumed abandoned three (3) years after:

(b) If the apparent owner of a security does not receive communications from the holder by first-class United States mail, the holder shall attempt to confirm the apparent owner's interest in the security by sending the apparent owner an electronic mail communication not later than two (2) years after the apparent owner's indication of interest in the security. If the holder receives notification that the electronic mail communication was not received, or if the apparent owner does not respond to the electronic mail communication within thirty (30) days after the communication was sent, the holder shall promptly attempt to contact the apparent owner by first-class United States mail. If the mail is returned to the holder undelivered by the United States postal service, the security is presumed abandoned three (3) years after the date the mail is returned.