Miss. Code § 25-1-57
Whenever any appointment or employment of an officer or employee of the State of Mississippi or any agency, department, or institution thereof, shall by law require confirmation by the Mississippi State Senate, no officer or employee of the state, or any other person, shall take, require, accept, or otherwise obtain as a condition of appointment or employment an undated or postdated resignation from a person to be appointed as an officer or employee of the state or any agency, department, or institution thereof. Any such resignation accepted, taken, or obtained contrary to the provisions hereof shall be null and void and of no effect, unless the Mississippi State Senate shall have been advised of the existence and content of any undated or postdated resignation and consented thereto at the time of its confirmation of the appointment or employment.
Miss. Code § 25-1-57