Miss. Code Ann. § 11-51-57: Miss. Code Ann. § 11-51-57

When the appellee's residence is unknown, and he has no attorney in this state, notice of the appeal may be published in the manner provided for by the Mississippi Rules of Civil Procedure for service by publication upon such persons, and the Supreme Court, being satisfied thereof, may hear and determine the appeal as if a summons had been duly served on the appellee.