Tennessee Code Title 21. Proceedings in Chancery § 21-1-205

(a) Where publication is made for a nonresident defendant, the clerk of the court in which the suit is filed shall mail a copy of the complaint or, after the first publication, mail a copy of the newspaper clipping containing the publication to the nonresident defendant, directed to the nonresident defendant's last known address; and the clerk shall make an entry upon the clerk's docket so showing. The clerk shall mail the copy of the complaint or published notice by return receipt certified or registered mail. The return of the receipt signed by the defendant or the defendant's duly authorized agent, or its return marked refused, evidenced by appropriate notation of that fact by the postal authorities, and filed as a part of the record by the clerk, with notation on the docket of the true facts, shall be evidence of personal notice. In the event the return receipt does not establish that it was signed by the defendant or the defendant's authorized agent or that the notice was refused, then the court may find through independent proof that the defendant had actual notice in compliance with notice requirements. If the court does not find that the defendant had actual notice, it may order new publication on applicable grounds, or order such other and further action to be taken to give the defendant notice.

(b) In those counties where the divorce referee mails notice of the filing of the divorce and a copy of the complaint to a nonresident defendant by certified or registered mail return receipt requested, it shall not be necessary for the clerk of the court to also mail notice. Notice to the nonresident defendant from the divorce referee shall be sufficient, subject to the requirements of evidence of notice as set forth in subsection (a); provided, that the return receipt is filed as part of the record, with notation on the docket of the true facts. Nothing in this section shall be deemed to have changed or amended requirements of the law as to venue or jurisdiction.