Mississippi Rules of Civil Procedure provides as follows:

(c) Service.
(1) A subpoena may be served by a sheriff, or by his deputy, or by any other person
who is not a party and is not less than 18 years of age, and his return endorsed thereon shall be prima facie proof of service, or the person served may acknowledge service in writing on the subpoena. Service of the subpoena shall be executed upon the witness personally.Except when excused by the court upon a showing of indigence, the party causing the subpoena to issue shall tender to a non-party witness at the time of service the fee for one day’s attendance plus mileage allowed by law. When the subpoena is issued on behalf of the State of Mississippi or an officer or agency thereof, fees and mileage need not be tendered in advance.